[Mac] Move ScopedSendingEvent from content/common/mac to base/mac.

webkit/tools/test_shell/test_shell_platform_delegate_mac.mm

Index: webkit/tools/test_shell/test_shell_platform_delegate_mac.mm
diff --git a/webkit/tools/test_shell/test_shell_platform_delegate_mac.mm b/webkit/tools/test_shell/test_shell_platform_delegate_mac.mm
index f85644884557aeeca53311564ca39194addc3cb9..8490f25023a771b748996cbdca9ae6093fa90756 100644
--- a/webkit/tools/test_shell/test_shell_platform_delegate_mac.mm
+++ b/webkit/tools/test_shell/test_shell_platform_delegate_mac.mm
@@ -13,6 +13,7 @@
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/message_pump_mac.h"
+#import "base/test/mock_chrome_application_mac.h"
 #include "third_party/WebKit/Source/WebKit/mac/WebCoreSupport/WebSystemInterface.h"
 #include "webkit/tools/test_shell/test_shell.h"
 #include "webkit/tools/test_shell/test_shell_platform_delegate.h"
@@ -20,26 +21,6 @@
 
 static NSAutoreleasePool *gTestShellAutoreleasePool = nil;
 
-@interface CrApplication : NSApplication<CrAppProtocol> {
- @private
-  BOOL handlingSendEvent_;
-}
-- (BOOL)isHandlingSendEvent;
-@end
-
-@implementation CrApplication
-- (BOOL)isHandlingSendEvent {
-  return handlingSendEvent_;
-}
-
-- (void)sendEvent:(NSEvent*)event {
-  BOOL wasHandlingSendEvent = handlingSendEvent_;
-  handlingSendEvent_ = YES;
-  [super sendEvent:event];
-  handlingSendEvent_ = wasHandlingSendEvent;
-}
-@end
-
 static void SetDefaultsToLayoutTestValues(void) {
   // So we can match the WebKit layout tests, we want to force a bunch of
   // preferences that control appearance to match.
@@ -172,15 +153,15 @@ static void SwizzleNSPasteboard(void) {
 TestShellPlatformDelegate::TestShellPlatformDelegate(
     const CommandLine &command_line)
     : command_line_(command_line) {
-  // Force AppKit to init itself, but don't start the runloop yet
-  [CrApplication sharedApplication];
   gTestShellAutoreleasePool = [[NSAutoreleasePool alloc] init];
+  // Force AppKit to init itself, but don't start the runloop yet
+  [MockCrApp sharedApplication];
   InitWebCoreSystemInterface();
   [NSBundle loadNibNamed:@"MainMenu" owner:NSApp];
 }
 
 TestShellPlatformDelegate::~TestShellPlatformDelegate() {
-  [gTestShellAutoreleasePool release];
+  [gTestShellAutoreleasePool drain];
 }
 
 bool TestShellPlatformDelegate::CheckLayoutTestSystemDependencies() {