<webview>: Move autosize from content to chrome

content/public/browser/browser_plugin_guest_delegate.h

 // Copyright 2013 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_BROWSER_PLUGIN_GUEST_DELEGATE_H_
 #define CONTENT_PUBLIC_BROWSER_BROWSER_PLUGIN_GUEST_DELEGATE_H_
 
 #include "base/callback_forward.h"
 #include "base/process/kill.h"
 #include "content/common/content_export.h"
@@ skipping 22 matching lines @@
 
   virtual WebContents* CreateNewGuestWindow(
       const WebContents::CreateParams& create_params);
 
   // Notification that the embedder has completed attachment.
   virtual void DidAttach() {}
 
   // Requests the instance ID associated with the delegate.
   virtual int GetGuestInstanceID() const;
 
-  // Notifies that the content size of the guest has changed in autosize mode.
-  virtual void SizeChanged(const gfx::Size& old_size,
-                           const gfx::Size& new_size) {}
+  // Notification that the BrowserPlugin has resized.
+  virtual void ElementSizeChanged(const gfx::Size& old_size,
+                                  const gfx::Size& new_size) {}
+
+  // Notifies that the content size of the guest has changed.
+  // Note: In autosize mode, it si possible that the guest size may not match
+  // the element size.
+  virtual void GuestSizeChanged(const gfx::Size& old_size,
+                                const gfx::Size& new_size) {}
 
   // Asks the delegate if the given guest can lock the pointer.
   // Invoking the |callback| synchronously is OK.
   virtual void RequestPointerLockPermission(
       bool user_gesture,
       bool last_unlocked_by_target,
       const base::Callback<void(bool)>& callback) {}
 
   // Requests that the delegate destroy itself along with its associated
   // WebContents.
   virtual void Destroy() {}
 
   // Registers a |callback| with the delegate that the delegate would call when
   // it is about to be destroyed.
   typedef base::Callback<void()> DestructionCallback;
   virtual void RegisterDestructionCallback(
       const DestructionCallback& callback) {}
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_BROWSER_PLUGIN_GUEST_DELEGATE_H_