Migrate to OS_MAC and OS_APPLE in chrome/browser/ part 1

This migrates:

 defined(OS_MACOSX) -> defined(OS_APPLE)
 defined(OS_MACOSX) && !defined(OS_IOS) -> defined(OS_MAC)
 !defined(OS_MACOSX) || defined(OS_IOS) -> !defined(OS_MAC)

Bug: 1105907
Change-Id: I0590b7f22dd27637d7220ba4a09837421457638f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2321508
Reviewed-by: Alexei Svitkine <[email protected]>
Reviewed-by: Robert Sesek <[email protected]>
Commit-Queue: Robert Sesek <[email protected]>
Auto-Submit: Avi Drissman <[email protected]>
Cr-Commit-Position: refs/heads/master@{#792729}
diff --git a/chrome/browser/browser_process_impl.cc b/chrome/browser/browser_process_impl.cc
index 617e461..f5224ee1 100644
--- a/chrome/browser/browser_process_impl.cc
+++ b/chrome/browser/browser_process_impl.cc
@@ -147,7 +147,7 @@
 
 #if defined(OS_WIN)
 #include "base/win/windows_version.h"
-#elif defined(OS_MACOSX)
+#elif defined(OS_MAC)
 #include "chrome/browser/chrome_browser_main_mac.h"
 #include "chrome/browser/media/webrtc/system_media_capture_permissions_stats_mac.h"
 #endif
@@ -270,7 +270,7 @@
   ChildProcessSecurityPolicy::GetInstance()->RegisterWebSafeScheme(
       chrome::kChromeSearchScheme);
 
-#if defined(OS_MACOSX)
+#if defined(OS_MAC)
   ui::InitIdleMonitor();
 #endif
 
@@ -331,7 +331,7 @@
   DCHECK(!webrtc_event_log_manager_);
   webrtc_event_log_manager_ = WebRtcEventLogManager::CreateSingletonInstance();
 
-#if defined(OS_MACOSX)
+#if defined(OS_MAC)
   system_media_permissions::LogSystemMediaPermissionsStartupStats();
 #endif
 }
@@ -345,7 +345,7 @@
 }
 #endif
 
-#if defined(OS_MACOSX)
+#if defined(OS_MAC)
 void BrowserProcessImpl::ClearQuitClosure() {
   quit_closure_.Reset();
 }
@@ -1420,7 +1420,7 @@
 
   CHECK(base::RunLoop::IsRunningOnCurrentThread());
 
-#if defined(OS_MACOSX)
+#if defined(OS_MAC)
   base::ThreadTaskRunnerHandle::Get()->PostTask(
       FROM_HERE,
       base::BindOnce(ChromeBrowserMainPartsMac::DidEndMainMessageLoop));