Get rid of extensions dependency from content\browser.

chrome/browser/extensions/extension_host.cc

 // Copyright (c) 2011 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.
 
 #include "chrome/browser/extensions/extension_host.h"
 
 #include <list>
 
 #include "base/memory/singleton.h"
 #include "base/message_loop.h"
@@ skipping 14 matching lines @@
 #include "chrome/browser/renderer_host/browser_render_process_host.h"
 #include "chrome/browser/renderer_preferences_util.h"
 #include "chrome/browser/tab_contents/popup_menu_helper_mac.h"
 #include "chrome/browser/ui/app_modal_dialogs/message_box_handler.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/webui/chrome_web_ui_factory.h"
 #include "chrome/common/chrome_constants.h"
 #include "chrome/common/bindings_policy.h"
 #include "chrome/common/extensions/extension.h"
 #include "chrome/common/extensions/extension_constants.h"
+#include "chrome/common/extensions/extension_messages.h"
 #include "chrome/common/render_messages.h"
 #include "chrome/common/url_constants.h"
 #include "chrome/common/view_types.h"
 #include "content/browser/browsing_instance.h"
 #include "content/browser/renderer_host/render_process_host.h"
 #include "content/browser/renderer_host/render_view_host.h"
 #include "content/browser/renderer_host/render_widget_host.h"
 #include "content/browser/renderer_host/render_widget_host_view.h"
 #include "content/browser/site_instance.h"
 #include "content/browser/tab_contents/tab_contents.h"
@@ skipping 741 matching lines @@
 }
 
 ViewType::Type ExtensionHost::GetRenderViewType() const {
   return extension_host_type_;
 }
 
 bool ExtensionHost::OnMessageReceived(const IPC::Message& message) {
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(ExtensionHost, message)
     IPC_MESSAGE_HANDLER(ViewHostMsg_RunFileChooser, OnRunFileChooser)
+    IPC_MESSAGE_HANDLER(ExtensionHostMsg_PostMessage, OnPostMessage)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
 
   if (!handled)
     handled = desktop_notification_handler_->OnMessageReceived(message);
   if (!handled)
     handled = dev_tools_handler_->OnMessageReceived(message);
   return handled;
 }
 
@@ skipping 36 matching lines @@
   }
   return window_id;
 }
 
 void ExtensionHost::OnRunFileChooser(
     const ViewHostMsg_RunFileChooser_Params& params) {
   if (file_select_helper_.get() == NULL)
     file_select_helper_.reset(new FileSelectHelper(profile()));
   file_select_helper_->RunFileChooser(render_view_host_, params);
 }
+
+void ExtensionHost::OnPostMessage(int port_id, const std::string& message) {
+  if (profile()->GetExtensionMessageService()) {
+    profile()->GetExtensionMessageService()->PostMessageFromRenderer(
+        port_id, message);
+  }
+}