Fix scroll restoration when exiting fullscreen mode.

content/public/browser/web_contents.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_PUBLIC_BROWSER_WEB_CONTENTS_H_
 #define CONTENT_PUBLIC_BROWSER_WEB_CONTENTS_H_
 
 #include <stdint.h>
 
 #include <set>
@@ skipping 651 matching lines @@
   virtual void GetManifest(const GetManifestCallback& callback) = 0;
 
   typedef base::Callback<void(bool)> HasManifestCallback;
 
   // Returns true if the main frame has a <link> to a web manifest, otherwise
   // false. This method does not guarantee that the manifest exists at the
   // specified location or is valid.
   virtual void HasManifest(const HasManifestCallback& callback) = 0;
 
   // Requests the renderer to exit fullscreen.
-  virtual void ExitFullscreen() = 0;
+  // |will_cause_resize| can be false in the case where we exit tab fullscreen

[Avi (use Gerrit), 2016/01/05 16:17:57]

Same comment here. "will be false in the case"?

[bokan, 2016/01/05 17:15:48]

Done.

+  // into browser fullscreen and thus won't cause bounds to change.
+  virtual void ExitFullscreen(bool will_cause_resize) = 0;
 
   // Unblocks requests from renderer for a newly created window. This is
   // used in showCreatedWindow() or sometimes later in cases where
   // delegate->ShouldResumeRequestsForCreatedWindow() indicated the requests
   // should not yet be resumed. Then the client is responsible for calling this
   // as soon as they are ready.
   virtual void ResumeLoadingCreatedWebContents() = 0;
 
 #if defined(OS_ANDROID)
   // Requests to resume the current media session.
@@ skipping 18 matching lines @@
 
  private:
   // This interface should only be implemented inside content.
   friend class WebContentsImpl;
   WebContents() {}
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_WEB_CONTENTS_H_