Fix a race condition in the Java Bridge when adding objects

content/renderer/java/java_bridge_dispatcher.h

Index: content/renderer/java/java_bridge_dispatcher.h
diff --git a/content/renderer/java/java_bridge_dispatcher.h b/content/renderer/java/java_bridge_dispatcher.h
index 73599517e459703b0b67ed377267ef3ea5a36ca9..a7d877efa288931988479e1f70e259b962421ab8 100644
--- a/content/renderer/java/java_bridge_dispatcher.h
+++ b/content/renderer/java/java_bridge_dispatcher.h
@@ -19,8 +19,7 @@ class JavaBridgeChannel;
 // again.
 class JavaBridgeDispatcher : public content::RenderViewObserver {
  public:
-  JavaBridgeDispatcher(content::RenderView* render_view,
-                       const IPC::ChannelHandle& channel_handle);
+  JavaBridgeDispatcher(content::RenderView* render_view);
   virtual ~JavaBridgeDispatcher();
 
  private:
@@ -33,6 +32,8 @@ class JavaBridgeDispatcher : public content::RenderViewObserver {
                         const NPVariant_Param& variant_param);
   void OnRemoveNamedObject(const string16& name);
 
+  void EnsureChannelIsSetUp();
+
   // Objects that will be bound to the window when the window object is next
   // cleared. We hold a ref to these.
   typedef std::map<string16, NPVariant> ObjectMap;