Delete rtc_base/basictypes.h

Only remaining user was rtc_base/byteorder.h, which is changed to use
rtc_base/system/arch.h.

Bug: webrtc:6853
Change-Id: If3b21831adc60adfd989061027d661867c938a0f
Reviewed-on: https://webrtc-review.googlesource.com/78740
Commit-Queue: Niels Moller <nisse@webrtc.org>
Reviewed-by: Karl Wiberg <kwiberg@webrtc.org>
Reviewed-by: Fredrik Solenberg <solenberg@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#23406}
diff --git a/rtc_base/byteorder.h b/rtc_base/byteorder.h
index 43cfb36..86546a5 100644
--- a/rtc_base/byteorder.h
+++ b/rtc_base/byteorder.h
@@ -17,7 +17,7 @@
 #include <arpa/inet.h>
 #endif
 
-#include "rtc_base/basictypes.h"
+#include "rtc_base/system/arch.h"
 
 #if defined(WEBRTC_MAC)
 #include <libkern/OSByteOrder.h>
@@ -53,7 +53,7 @@
 #define be64toh(v) ntohll(v)
 #endif
 
-#if defined(RTC_ARCH_CPU_LITTLE_ENDIAN)
+#if defined(WEBRTC_ARCH_LITTLE_ENDIAN)
 #define htole16(v) (v)
 #define htole32(v) (v)
 #define htole64(v) (v)
@@ -64,7 +64,7 @@
 #define htobe64(v) __builtin_bswap64(v)
 #define be64toh(v) __builtin_bswap64(v)
 #endif
-#elif defined(RTC_ARCH_CPU_BIG_ENDIAN)
+#elif defined(WEBRTC_ARCH_BIG_ENDIAN)
 #define htole16(v) __builtin_bswap16(v)
 #define htole32(v) __builtin_bswap32(v)
 #define htole64(v) __builtin_bswap64(v)
@@ -76,8 +76,8 @@
 #define be64toh(v) (v)
 #endif
 #else
-#error RTC_ARCH_CPU_BIG_ENDIAN or RTC_ARCH_CPU_LITTLE_ENDIAN must be defined.
-#endif  // defined(RTC_ARCH_CPU_LITTLE_ENDIAN)
+#error WEBRTC_ARCH_BIG_ENDIAN or WEBRTC_ARCH_LITTLE_ENDIAN must be defined.
+#endif  // defined(WEBRTC_ARCH_LITTLE_ENDIAN)
 #elif defined(WEBRTC_POSIX)
 #include <endian.h>
 #endif
@@ -144,7 +144,7 @@
 
 // Check if the current host is big endian.
 inline bool IsHostBigEndian() {
-#if defined(RTC_ARCH_CPU_BIG_ENDIAN)
+#if defined(WEBRTC_ARCH_BIG_ENDIAN)
   return true;
 #else
   return false;