Reland of move all reference to carbon api (patchset #1 id:1 of https://codereview.webrtc.org/2317343003/ )

Reason for revert:
Build issues have now _really_ been fixed

Original issue's description:
> Revert of move all reference to carbon api (patchset #2 id:300001 of https://codereview.webrtc.org/2321493002/ )
>
> Reason for revert:
> Still breaks Chromium mac compile:
> [4542/22193] CXX obj/third_party/webrtc/base/rtc_base/unixfilesystem.o
> FAILED: obj/third_party/webrtc/base/rtc_base/unixfilesystem.o
> /b/c/cipd/goma/gomacc ../../third_party/llvm-build/Release+Asserts/bin/clang++ -MMD -MF obj/third_party/webrtc/base/rtc_base/unixfilesystem.o.d -DLOGGING=1 -DV8_DEPRECATION_WARNINGS -DENABLE_NOTIFICATIONS -DENABLE_PEPPER_CDMS -DENABLE_PLUGINS=1 -DENABLE_PDF=1 -DENABLE_PRINTING=1 -DENABLE_BASIC_PRINTING=1 -DENABLE_PRINT_PREVIEW=1 -DENABLE_SPELLCHECK=1 -DUSE_BROWSER_SPELLCHECKER=1 -DDCHECK_ALWAYS_ON=1 -DNO_TCMALLOC -DUSE_EXTERNAL_POPUP_MENU=1 -DENABLE_WEBRTC=1 -DENABLE_EXTENSIONS=1 -DENABLE_TASK_MANAGER=1 -DENABLE_THEMES=1 -DENABLE_CAPTIVE_PORTAL_DETECTION=1 -DENABLE_SESSION_SERVICE=1 -DENABLE_PLUGIN_INSTALLATION=1 -DENABLE_SUPERVISED_USERS=1 -DENABLE_SERVICE_DISCOVERY=1 -DUSE_PROPRIETARY_CODECS -DFULL_SAFE_BROWSING -DSAFE_BROWSING_CSD -DSAFE_BROWSING_DB_LOCAL -DCHROMIUM_BUILD -DENABLE_MEDIA_ROUTER=1 -DFIELDTRIAL_TESTING_ENABLED -DCR_CLANG_REVISION=280106-1 -DCR_XCODE_VERSION=0511 -D__ASSERT_MACROS_DEFINE_VERSIONS_WITHOUT_UNDERSCORE=0 -DNDEBUG -DNVALGRIND -DDYNAMIC_ANNOTATIONS_ENABLED=0 -DWEBRTC_RESTRICT_LOGGING -DEXPAT_RELATIVE_PATH -DENABLE_EXTERNAL_AUTH -DHAVE_OPENSSL_SSL_H -DHAVE_SCTP -DHAVE_SRTP -DHAVE_WEBRTC_VIDEO -DHAVE_WEBRTC_VOICE -DLOGGING_INSIDE_WEBRTC -DSRTP_RELATIVE_PATH -DSSL_USE_OPENSSL -DUSE_WEBRTC_DEV_BRANCH -DSSL_USE_OPENSSL -DHAVE_OPENSSL_SSL_H -DFEATURE_ENABLE_SSL -DLOGGING=1 -DFEATURE_ENABLE_SSL -DFEATURE_ENABLE_VOICEMAIL -DEXPAT_RELATIVE_PATH -DGTEST_RELATIVE_PATH -DNO_MAIN_THREAD_WRAPPING -DNO_SOUND_SYSTEM -DWEBRTC_CHROMIUM_BUILD -DWEBRTC_POSIX -DWEBRTC_MAC -DNO_MAIN_THREAD_WRAPPING -I../../third_party/webrtc_overrides -I../../third_party/boringssl/src/include -I../.. -Igen -I../../third_party/jsoncpp/overrides/include -I../../third_party/jsoncpp/source/include -I../../third_party/webrtc_overrides -I../../third_party -I../../third_party/boringssl/src/include -Wno-uninitialized -fno-strict-aliasing -fstack-protector -fcolor-diagnostics -arch x86_64 -O2 -g1 -isysroot /Applications/Xcode5.1.1.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.10.sdk -mmacosx-version-min=10.7 -fvisibility=hidden -Xclang -load -Xclang ../../third_party/llvm-build/Release+Asserts/lib/libFindBadConstructs.dylib -Xclang -add-plugin -Xclang find-bad-constructs -Wheader-hygiene -Wstring-conversion -Werror -Wall -Wno-unused-variable -Wpartial-availability -Wno-missing-field-initializers -Wno-unused-parameter -Wno-c++11-narrowing -Wno-covered-switch-default -Wno-deprecated-register -Wno-unneeded-internal-declaration -Wno-inconsistent-missing-override -Wno-shift-negative-value -Wno-undefined-var-template -Wno-nonportable-include-path -Wno-address-of-packed-member -fno-threadsafe-statics -fvisibility-inlines-hidden -std=c++11 -stdlib=libc++ -fno-rtti -fno-exceptions -c ../../third_party/webrtc/base/unixfilesystem.cc -o obj/third_party/webrtc/base/rtc_base/unixfilesystem.o
> ../../third_party/webrtc/base/unixfilesystem.cc:375:11: error: variable has incomplete type 'FSRef'
>     FSRef fr;
>           ^
> /Applications/Xcode5.1.1.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.10.sdk/System/Library/Frameworks/CoreFoundation.framework/Headers/CFURL.h:467:8: note: forward declaration of 'FSRef'
> struct FSRef;
>        ^
> ../../third_party/webrtc/base/unixfilesystem.cc:376:27: error: use of undeclared identifier 'kUserDomain'
>     if (0 != FSFindFolder(kUserDomain, kApplicationSupportFolderType,
>                           ^
> ../../third_party/webrtc/base/unixfilesystem.cc:376:40: error: use of undeclared identifier 'kApplicationSupportFolderType'
>     if (0 != FSFindFolder(kUserDomain, kApplicationSupportFolderType,
>                                        ^
> ../../third_party/webrtc/base/unixfilesystem.cc:377:27: error: use of undeclared identifier 'kCreateFolder'; did you mean 'CreateFolder'?
>                           kCreateFolder, &fr))
>                           ^~~~~~~~~~~~~
>                           CreateFolder
> ../../third_party/webrtc/base/unixfilesystem.cc:92:22: note: 'CreateFolder' declared here
> bool UnixFilesystem::CreateFolder(const Pathname &path, mode_t mode) {
>
> Original issue's description:
> > Reland of move all reference to carbon api (patchset #1 id:1 of https://codereview.webrtc.org/2316563002/ )
> >
> > Reason for revert:
> > Chromium build issues have been resolved.
> >
> > Original issue's description:
> > > Revert of Remove all reference to carbon api (patchset #2 id:20001 of https://codereview.webrtc.org/2299633002/ )
> > >
> > > Reason for revert:
> > > Breaks chromium build
> > >
> > > Original issue's description:
> > > > Remove all reference to carbon api
> > > >
> > > > BUG=webrtc:6282
> > > >
> > > > Committed: https://crrev.com/dbd8b6bec4143c940b2f2ca8cd85c25d17327964
> > > > Cr-Commit-Position: refs/heads/master@{#14080}
> > >
> > > TBR=magjed@webrtc.org,mflodman@webrtc.org
> > > # Skipping CQ checks because original CL landed less than 1 days ago.
> > > NOPRESUBMIT=true
> > > NOTREECHECKS=true
> > > NOTRY=true
> > > BUG=webrtc:6282
> > >
> > > Committed: https://crrev.com/b096aa7fd375a980daab3a986596548ca5de2a1c
> > > Cr-Commit-Position: refs/heads/master@{#14081}
> >
> > TBR=magjed@webrtc.org,mflodman@webrtc.org
> > # Not skipping CQ checks because original CL landed more than 1 days ago.
> > BUG=webrtc:6282
> >
> > Committed: https://crrev.com/a90879b64fd8db57c0274169311d6b51dd59f1a0
> > Cr-Commit-Position: refs/heads/master@{#14125}
>
> TBR=mflodman@webrtc.org,kthelgason@webrtc.org
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=webrtc:6282
>
> Committed: https://crrev.com/4e0581f543b026cbc31c3b24cf65c7f51dcd6124
> Cr-Commit-Position: refs/heads/master@{#14133}

TBR=mflodman@webrtc.org,magjed@webrtc.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=webrtc:6282

Review-Url: https://codereview.webrtc.org/2327573002
Cr-Commit-Position: refs/heads/master@{#14155}
diff --git a/webrtc/base/unixfilesystem.cc b/webrtc/base/unixfilesystem.cc
index b474324..61d0361 100644
--- a/webrtc/base/unixfilesystem.cc
+++ b/webrtc/base/unixfilesystem.cc
@@ -17,7 +17,7 @@
 #include <unistd.h>
 
 #if defined(WEBRTC_MAC) && !defined(WEBRTC_IOS)
-#include <Carbon/Carbon.h>
+#include <CoreServices/CoreServices.h>
 #include <IOKit/IOCFBundle.h>
 #include <sys/statvfs.h>
 #include "webrtc/base/macutils.h"
@@ -50,13 +50,13 @@
 #include "webrtc/base/stream.h"
 #include "webrtc/base/stringutils.h"
 
-#if defined(WEBRTC_IOS)
-// Defined in iosfilesystem.mm.  No header file to discourage use
+#if defined(WEBRTC_MAC)
+// Defined in applefilesystem.mm.  No header file to discourage use
 // elsewhere; other places should use GetApp{Data,Temp}Folder() in
 // this file.  Don't copy/paste.  I mean it.
-char* IOSDataDirectory();
-char* IOSTempDirectory();
-void IOSAppName(rtc::Pathname* path);
+char* AppleDataDirectory();
+char* AppleTempDirectory();
+void AppleAppName(rtc::Pathname* path);
 #endif
 
 namespace rtc {
@@ -81,9 +81,9 @@
 UnixFilesystem::UnixFilesystem() {
 #if defined(WEBRTC_IOS)
   if (!provided_app_data_folder_)
-    provided_app_data_folder_ = IOSDataDirectory();
+    provided_app_data_folder_ = AppleDataDirectory();
   if (!provided_app_temp_folder_)
-    provided_app_temp_folder_ = IOSTempDirectory();
+    provided_app_temp_folder_ = AppleTempDirectory();
 #endif
 }
 
@@ -171,19 +171,10 @@
 
 bool UnixFilesystem::GetTemporaryFolder(Pathname &pathname, bool create,
                                         const std::string *append) {
-#if defined(WEBRTC_MAC) && !defined(WEBRTC_IOS)
-  FSRef fr;
-  if (0 != FSFindFolder(kOnAppropriateDisk, kTemporaryFolderType,
-                        kCreateFolder, &fr))
-    return false;
-  unsigned char buffer[NAME_MAX+1];
-  if (0 != FSRefMakePath(&fr, buffer, arraysize(buffer)))
-    return false;
-  pathname.SetPathname(reinterpret_cast<char*>(buffer), "");
-#elif defined(WEBRTC_ANDROID) || defined(WEBRTC_IOS)
+#if defined(WEBRTC_ANDROID) || defined(WEBRTC_IOS)
   ASSERT(provided_app_temp_folder_ != NULL);
   pathname.SetPathname(provided_app_temp_folder_, "");
-#else  // !WEBRTC_MAC || WEBRTC_IOS && !WEBRTC_ANDROID
+#else
   if (const char* tmpdir = getenv("TMPDIR")) {
     pathname.SetPathname(tmpdir, "");
   } else if (const char* tmp = getenv("TMP")) {
@@ -195,7 +186,7 @@
     pathname.SetPathname("/tmp/", "");
 #endif  // !P_tmpdir
   }
-#endif  // !WEBRTC_MAC || WEBRTC_IOS && !WEBRTC_ANDROID
+#endif  // defined(WEBRTC_ANDROID) || defined(WEBRTC_IOS)
   if (append) {
     ASSERT(!append->empty());
     pathname.AppendFolder(*append);
@@ -357,24 +348,10 @@
 }
 
 bool UnixFilesystem::GetAppPathname(Pathname* path) {
-#if defined(WEBRTC_MAC) && !defined(WEBRTC_IOS)
-  ProcessSerialNumber psn = { 0, kCurrentProcess };
-  CFDictionaryRef procinfo = ProcessInformationCopyDictionary(&psn,
-      kProcessDictionaryIncludeAllInformationMask);
-  if (NULL == procinfo)
-    return false;
-  CFStringRef cfpath = (CFStringRef) CFDictionaryGetValue(procinfo,
-      kIOBundleExecutableKey);
-  std::string path8;
-  bool success = ToUtf8(cfpath, &path8);
-  CFRelease(procinfo);
-  if (success)
-    path->SetPathname(path8);
-  return success;
-#elif defined(__native_client__)
+#if defined(__native_client__)
   return false;
-#elif WEBRTC_IOS
-  IOSAppName(path);
+#elif defined(WEBRTC_MAC)
+  AppleAppName(path);
   return true;
 #else  // WEBRTC_MAC && !defined(WEBRTC_IOS)
   char buffer[PATH_MAX + 2];