[Mac] Remove content/ CrApplication.

chrome/browser/tab_contents/tab_contents_view_mac.mm

Index: chrome/browser/tab_contents/tab_contents_view_mac.mm
diff --git a/chrome/browser/tab_contents/tab_contents_view_mac.mm b/chrome/browser/tab_contents/tab_contents_view_mac.mm
index 121e0824e46e192e64f7f0844038dfdb395a55f8..927af25b68457322a31fddd1bb4604ac3646a57b 100644
--- a/chrome/browser/tab_contents/tab_contents_view_mac.mm
+++ b/chrome/browser/tab_contents/tab_contents_view_mac.mm
@@ -9,6 +9,7 @@
 #include <string>
 
 #import "base/mac/scoped_sending_event.h"
+#import "base/message_pump_mac.h"
 #import "chrome/browser/renderer_host/chrome_render_widget_host_view_mac_delegate.h"
 #include "chrome/browser/tab_contents/render_view_context_menu_mac.h"
 #include "chrome/browser/tab_contents/web_drag_bookmark_handler_mac.h"
@@ -23,7 +24,6 @@
 #include "content/browser/tab_contents/tab_contents_delegate.h"
 #import "content/browser/tab_contents/web_drag_dest_mac.h"
 #import "content/browser/tab_contents/web_drag_source_mac.h"
-#import "content/common/chrome_application_mac.h"
 #include "content/common/view_messages.h"
 #include "skia/ext/skia_utils_mac.h"
 #import "third_party/mozilla/NSPasteboard+Utils.h"
@@ -369,11 +369,7 @@ void TabContentsViewMac::ShowPopupMenu(
 }
 
 bool TabContentsViewMac::IsEventTracking() const {
-  if ([NSApp isKindOfClass:[CrApplication class]] &&
-      [static_cast<CrApplication*>(NSApp) isHandlingSendEvent]) {
-    return true;
-  }
-  return false;
+  return base::MessagePumpMac::IsHandlingSendEvent();
 }
 
 // Arrange to call CloseTab() after we're back to the main event loop.