Fix header guards in //chrome

chrome/browser/ui/cocoa/web_contents_modal_dialog_host_cocoa.h

Index: chrome/browser/ui/cocoa/web_contents_modal_dialog_host_cocoa.h
diff --git a/chrome/browser/ui/cocoa/web_contents_modal_dialog_host_cocoa.h b/chrome/browser/ui/cocoa/web_contents_modal_dialog_host_cocoa.h
index d1e0e4106675e5b5d04e2b1407d4de68d14d32ee..7a84b9aa531dd8a408f5ceb917f6d20e2a368463 100644
--- a/chrome/browser/ui/cocoa/web_contents_modal_dialog_host_cocoa.h
+++ b/chrome/browser/ui/cocoa/web_contents_modal_dialog_host_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_COCOA_WEB_CONTENTS_DIALOG_HOST_COCOA_H_
-#define CHROME_BROWSER_UI_COCOA_WEB_CONTENTS_DIALOG_HOST_COCOA_H_
+#ifndef CHROME_BROWSER_UI_COCOA_WEB_CONTENTS_MODAL_DIALOG_HOST_COCOA_H_
+#define CHROME_BROWSER_UI_COCOA_WEB_CONTENTS_MODAL_DIALOG_HOST_COCOA_H_
 
 #include "base/macros.h"
 #include "components/web_modal/web_contents_modal_dialog_host.h"
@@ -34,4 +34,4 @@ class WebContentsModalDialogHostCocoa
   DISALLOW_COPY_AND_ASSIGN(WebContentsModalDialogHostCocoa);
 };
 
-#endif  // CHROME_BROWSER_UI_COCOA_WEB_CONTENTS_DIALOG_HOST_COCOA_H_
+#endif  // CHROME_BROWSER_UI_COCOA_WEB_CONTENTS_MODAL_DIALOG_HOST_COCOA_H_