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

base/mac/scoped_sending_event_unittest.mm

Index: base/mac/scoped_sending_event_unittest.mm
diff --git a/content/common/mac/scoped_sending_event_unittest.mm b/base/mac/scoped_sending_event_unittest.mm
similarity index 79%
rename from content/common/mac/scoped_sending_event_unittest.mm
rename to base/mac/scoped_sending_event_unittest.mm
index 510a821c7843428f10ab7709663dd0d2b10fffba..9ae99856c9e76e37b169e4d886ccea42a51eddcb 100644
--- a/content/common/mac/scoped_sending_event_unittest.mm
+++ b/base/mac/scoped_sending_event_unittest.mm
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#import "content/common/mac/scoped_sending_event.h"
+#import "base/mac/scoped_sending_event.h"
 
 #include "testing/gtest/include/gtest/gtest.h"
 
@@ -13,7 +13,7 @@ TEST(ScopedSendingEventTest, SetHandlingSendEvent) {
   id<CrAppProtocol> app = NSApp;
   EXPECT_FALSE([app isHandlingSendEvent]);
   {
-    content::mac::ScopedSendingEvent is_handling_send_event;
+    base::mac::ScopedSendingEvent is_handling_send_event;
     EXPECT_TRUE([app isHandlingSendEvent]);
   }
   EXPECT_FALSE([app isHandlingSendEvent]);
@@ -24,10 +24,10 @@ TEST(ScopedSendingEventTest, NestedSetHandlingSendEvent) {
   id<CrAppProtocol> app = NSApp;
   EXPECT_FALSE([app isHandlingSendEvent]);
   {
-    content::mac::ScopedSendingEvent is_handling_send_event;
+    base::mac::ScopedSendingEvent is_handling_send_event;
     EXPECT_TRUE([app isHandlingSendEvent]);
     {
-      content::mac::ScopedSendingEvent nested_is_handling_send_event;
+      base::mac::ScopedSendingEvent nested_is_handling_send_event;
       EXPECT_TRUE([app isHandlingSendEvent]);
     }
     EXPECT_TRUE([app isHandlingSendEvent]);