Remove SetExecutablePath, simplify ResourcePath

SetExecutablePath isn't used anymore.

Nobody was using the fancy select-per-platform functionality, and the
documentation was wrong anyway. In the cases somebody needed an
override per platform, they were using defines in their own test
instead. I think that is more verbose but more predictable and easy
to understand (see how it's done in audio_processing_unittest.cc
when loading output_data_mac, for instance).

Bug: webrtc:9792
Change-Id: I7289bf5883fe43852638922d7c7583eae0c08601
Reviewed-on: https://webrtc-review.googlesource.com/c/104482
Commit-Queue: Patrik Höglund <phoglund@webrtc.org>
Reviewed-by: Artem Titov <titovartem@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#25062}
diff --git a/rtc_base/BUILD.gn b/rtc_base/BUILD.gn
index 5c225a2..140d2ff 100644
--- a/rtc_base/BUILD.gn
+++ b/rtc_base/BUILD.gn
@@ -192,6 +192,7 @@
 
 rtc_source_set("logging") {
   visibility = [ "*" ]
+  libs = []
   deps = [
     ":criticalsection",
     ":macromagic",
@@ -222,6 +223,10 @@
     # logging.h needs the deprecation header while downstream projects are
     # removing code that depends on logging implementation details.
     deps += [ ":deprecation" ]
+
+    if (is_android) {
+      libs += [ "log" ]
+    }
   }
 }
 
@@ -248,6 +253,7 @@
 rtc_source_set("checks") {
   # TODO(bugs.webrtc.org/9607): This should not be public.
   visibility = [ "*" ]
+  libs = []
   sources = [
     "checks.cc",
     "checks.h",
@@ -256,6 +262,9 @@
     ":safe_compare",
     "system:inline",
   ]
+  if (is_android) {
+    libs += [ "log" ]
+  }
 }
 
 rtc_source_set("rate_limiter") {
@@ -1083,7 +1092,6 @@
       "../system_wrappers:field_trial",
       "../system_wrappers:metrics",
       "../test:field_trial",
-      "../test:fileutils",
       "../test:test_support",
     ]