<webview>: Support zoom in WebUI

content/browser/browser_plugin/browser_plugin_guest_manager.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.
 
 // A BrowserPluginGuestManager serves as a message router to BrowserPluginGuests
 // for all guests within a given profile.
 // Messages are routed to a particular guest instance based on an instance_id.
 
 #ifndef CONTENT_BROWSER_BROWSER_PLUGIN_BROWSER_PLUGIN_GUEST_MANAGER_H_
 #define CONTENT_BROWSER_BROWSER_PLUGIN_BROWSER_PLUGIN_GUEST_MANAGER_H_
@@ skipping 69 matching lines @@
 
   // Removes the guest with the given |instance_id| from this
   // BrowserPluginGuestManager.
   void RemoveGuest(int instance_id);
 
   // Returns whether the specified embedder is permitted to access the given
   // |instance_id|, and kills the embedder if not.
   bool CanEmbedderAccessInstanceIDMaybeKill(int embedder_render_process_id,
                                             int instance_id) const;
 
+  typedef base::Callback<void(BrowserPluginGuest*)> GuestCallback;
+  void GetGuests(WebContentsImpl* embedder_web_contents,

[nasko, 2014/01/06 21:58:40]

This method name doesn't make much sense. Maybe "ForEachGuest"? We use that
pattern elsewhere too.

[Fady Samuel, 2014/01/08 19:42:43]

Done.

+                 GuestCallback callback);
+
   void DidSendScreenRects(WebContentsImpl* embedder_web_contents);
 
   bool UnlockMouseIfNecessary(WebContentsImpl* embedder_web_contents_,
                               const NativeWebKeyboardEvent& event);
 
   void OnMessageReceived(const IPC::Message& message, int render_process_id);
 
  private:
   friend class TestBrowserPluginGuestManager;
 
@@ skipping 30 matching lines @@
   GuestInstanceMap guest_web_contents_by_instance_id_;
   int next_instance_id_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserPluginGuestManager);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_BROWSER_PLUGIN_BROWSER_PLUGIN_GUEST_MANAGER_H_