Fix header guards in //chrome

chrome/browser/ui/cocoa/toolbar/media_router_action_platform_delegate_cocoa.h

Index: chrome/browser/ui/cocoa/toolbar/media_router_action_platform_delegate_cocoa.h
diff --git a/chrome/browser/ui/cocoa/toolbar/media_router_action_platform_delegate_cocoa.h b/chrome/browser/ui/cocoa/toolbar/media_router_action_platform_delegate_cocoa.h
index 9f6a1f78a0d1fbe0b7ad52834db95645a684d506..411f1e5d9c0bc8936437a5b874781c5ef7999751 100644
--- a/chrome/browser/ui/cocoa/toolbar/media_router_action_platform_delegate_cocoa.h
+++ b/chrome/browser/ui/cocoa/toolbar/media_router_action_platform_delegate_cocoa.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef CHROME_BROWSER_UI_VIEWS_TOOLBAR_MEDIA_ROUTER_ACTION_PLATFORM_DELEGATE_COCOA_H_
-#define CHROME_BROWSER_UI_VIEWS_TOOLBAR_MEDIA_ROUTER_ACTION_PLATFORM_DELEGATE_COCOA_H_
+#ifndef CHROME_BROWSER_UI_COCOA_TOOLBAR_MEDIA_ROUTER_ACTION_PLATFORM_DELEGATE_COCOA_H_
+#define CHROME_BROWSER_UI_COCOA_TOOLBAR_MEDIA_ROUTER_ACTION_PLATFORM_DELEGATE_COCOA_H_
 
 #include "base/macros.h"
 #include "chrome/browser/ui/toolbar/media_router_action_platform_delegate.h"
@@ -25,4 +25,4 @@ class MediaRouterActionPlatformDelegateCocoa :
   DISALLOW_COPY_AND_ASSIGN(MediaRouterActionPlatformDelegateCocoa);
 };
 
-#endif  // CHROME_BROWSER_UI_VIEWS_TOOLBAR_MEDIA_ROUTER_ACTION_PLATFORM_DELEGATE_COCOA_H_
+#endif  // CHROME_BROWSER_UI_COCOA_TOOLBAR_MEDIA_ROUTER_ACTION_PLATFORM_DELEGATE_COCOA_H_