browser-plugin: Remove event handling code, and use CustomEvents in webkit instead.

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 96 matching lines @@
   bool ShouldGuestBeFocused() const;
 
   // 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);
-  // Remove a custom event listener from this BrowserPlugin instance.
-  bool RemoveEventListener(const std::string& event_name,
-                        v8::Local<v8::Function> function);
   // Tells the BrowserPlugin to tell the guest to navigate to the previous
   // navigation entry in the navigation history.
   void Back();
   // Tells the BrowserPlugin to tell the guest to navigate to the next
   // navigation entry in the navigation history.
   void Forward();
   // Tells the BrowserPlugin to tell the guest to navigate to a position
   // relative to the current index in its navigation history.
   void Go(int relativeIndex);
   // Tells the BrowserPlugin to terminate the guest process.
@@ skipping 82 matching lines @@
   // Initializes the valid events.
   void InitializeEvents();
 
   // Cleanup event listener state to free v8 resources when a BrowserPlugin
   // is destroyed.
   void RemoveEventListeners();
 
   // Returns whether |event_name| is a valid event.
   bool IsValidEvent(const std::string& event_name);
 
-  // Triggers the event-listeners for |event_name|.
+  // Triggers the event-listeners for |event_name|. Note that the function
+  // frees all the values in |props|.
   void TriggerEvent(const std::string& event_name,
-                    v8::Local<v8::Object>* event);
+                    std::map<std::string, base::Value*>* props);
 
   // Creates and maps transport dib. Overridden in tests.
   virtual TransportDIB* CreateTransportDIB(const size_t size);
   // Frees up the damage buffer. Overridden in tests.
   virtual void FreeDamageBuffer();
 
   // Populates BrowserPluginHostMsg_AutoSize_Params object with autosize state.
   void PopulateAutoSizeParameters(
       BrowserPluginHostMsg_AutoSize_Params* params) const;
   // Informs the guest of an updated autosize state.
@@ skipping 25 matching lines @@
   int min_width_;
   int process_id_;
   std::string storage_partition_id_;
   bool persist_storage_;
   int content_window_routing_id_;
   bool plugin_focused_;
   bool embedder_focused_;
   // Tracks the visibility of the browser plugin regardless of the whole
   // embedder RenderView's visibility.
   bool visible_;
-  typedef std::vector<v8::Local<v8::Function> > EventListenersLocal;
-  typedef std::vector<v8::Persistent<v8::Function> > EventListeners;
-  typedef std::map<std::string, EventListeners> EventListenerMap;
-  EventListenerMap event_listener_map_;
   // 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_