Browser Plugin: Add HTML5-like postMessage support

content/renderer/browser_plugin/browser_plugin.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_RENDERER_BROWSER_PLUGIN_BROWSER_PLUGIN_H_
 #define  CONTENT_RENDERER_BROWSER_PLUGIN_BROWSER_PLUGIN_H_
 
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebPlugin.h"
 
 #include "base/memory/scoped_ptr.h"
@@ skipping 20 matching lines @@
  public:
   // Called only by tests to clean up before we blow away the MockRenderProcess.
   void Cleanup();
 
   // Get the src attribute value of the BrowserPlugin instance if the guest
   // has not crashed.
   std::string GetSrcAttribute() const;
   // Set the src attribute value of the BrowserPlugin instance and reset
   // the guest_crashed_ flag.
   void SetSrcAttribute(const std::string& src);
+  // Get the guest's DOMWindow proxy.
+  NPObject* GetContentWindow() const;
   // Returns Chrome's process ID for the current guest.
   int process_id() const { return process_id_; }
   // The partition identifier string is stored as UTF-8.
   std::string GetPartitionAttribute() const;
   // Query whether the guest can navigate back to the previous entry.
   bool CanGoBack() const;
   // Query whether the guest can navigation forward to the next entry.
   bool CanGoForward() const;
   // This method can be successfully called only before the first navigation for
   // this instance of BrowserPlugin. If an error occurs, the |error_message| is
@@ skipping 14 matching lines @@
   // Inform the BrowserPlugin that the guest has aborted loading a new page.
   void LoadAbort(const GURL& url, bool is_top_level, const std::string& type);
   // Inform the BrowserPlugin that the guest has redirected a navigation.
   void LoadRedirect(const GURL& old_url,
                     const GURL& new_url,
                     bool is_top_level);
   // Tells the BrowserPlugin to advance the focus to the next (or previous)
   // element.
   void AdvanceFocus(bool reverse);
 
+  // Inform the BrowserPlugin that the guest's contentWindow is ready,
+  // and provide it with a routing ID to grab it.
+  void GuestContentWindowReady(int content_window_routing_id);
+
   // Informs the BrowserPlugin that the guest has started/stopped accepting
   // touch events.
   void SetAcceptTouchEvents(bool accept);
 
   // Indicates whether there are any Javascript listeners attached to a
   // provided event_name.
   bool HasListeners(const std::string& event_name);
   // Add a custom event listener to this BrowserPlugin instance.
   bool AddEventListener(const std::string& event_name,
                         v8::Local<v8::Function> function);
@@ skipping 110 matching lines @@
   SkBitmap* sad_guest_;
   bool guest_crashed_;
   bool resize_pending_;
   scoped_ptr<BrowserPluginHostMsg_ResizeGuest_Params> pending_resize_params_;
   // True if we have ever sent a NavigateGuest message to the embedder.
   bool navigate_src_sent_;
   std::string src_;
   int process_id_;
   std::string storage_partition_id_;
   bool persist_storage_;
+  int content_window_routing_id_;
   // Tracks the visibility of the browser plugin regardless of the whole
   // embedder RenderView's visibility.
   bool visible_;
   typedef std::vector<v8::Persistent<v8::Function> > EventListeners;
   typedef std::map<std::string, EventListeners> EventListenerMap;
   EventListenerMap event_listener_map_;
 #if defined(OS_WIN)
   base::SharedMemory shared_memory_;
 #endif
   // Important: Do not add more history state here.
   // We strongly discourage storing additional history state (such as page IDs)
   // in the embedder process, at the risk of having incorrect information that
   // can lead to broken back/forward logic in apps.
   // It's also important that this state does not get modified by any logic in
   // the embedder process. It should only be updated in response to navigation
   // events in the guest.  No assumptions should be made about how the index
   // will change after a navigation (e.g., for back, forward, or go), because
   // the changes are not always obvious.  For example, there is a maximum
   // number of entries and earlier ones will automatically be pruned.
   int current_nav_entry_index_;
   int nav_entry_count_;
   DISALLOW_COPY_AND_ASSIGN(BrowserPlugin);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_BROWSER_PLUGIN_BROWSER_PLUGIN_H_