[Media Router] Add P1 UMA metrics for Media Router.

chrome/browser/renderer_context_menu/render_view_context_menu.cc

 // Copyright 2014 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/renderer_context_menu/render_view_context_menu.h"
 
 #include <algorithm>
 #include <set>
 #include <utility>
 
@@ skipping 13 matching lines @@
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/custom_handlers/protocol_handler_registry_factory.h"
 #include "chrome/browser/devtools/devtools_window.h"
 #include "chrome/browser/download/download_service.h"
 #include "chrome/browser/download/download_service_factory.h"
 #include "chrome/browser/download/download_stats.h"
 #include "chrome/browser/extensions/devtools_util.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/media/router/media_router_dialog_controller.h"
+#include "chrome/browser/media/router/media_router_metrics.h"
 #include "chrome/browser/net/spdyproxy/data_reduction_proxy_chrome_settings.h"
 #include "chrome/browser/net/spdyproxy/data_reduction_proxy_chrome_settings_factory.h"
 #include "chrome/browser/password_manager/chrome_password_manager_client.h"
 #include "chrome/browser/plugins/chrome_plugin_service_filter.h"
 #include "chrome/browser/prefs/incognito_mode_prefs.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/profiles/profile_io_data.h"
 #include "chrome/browser/renderer_context_menu/context_menu_content_type_factory.h"
 #include "chrome/browser/renderer_context_menu/spelling_menu_observer.h"
 #include "chrome/browser/search/search.h"
@@ skipping 1679 matching lines @@
       DCHECK(browser && !browser->profile()->IsOffTheRecord());
 
       media_router::MediaRouterDialogController* dialog_controller =
           media_router::MediaRouterDialogController::GetOrCreateForWebContents(
               source_web_contents_);
 
       if (!dialog_controller)
         return;
 
       dialog_controller->ShowMediaRouterDialog();
+
+      media_router::MediaRouterMetrics::RecordMediaRouterDialogOrigin(
+          media_router::CONTEXTUAL_MENU);
+
       break;
     }
 
     case IDC_VIEW_SOURCE:
       embedder_web_contents_->ViewSource();
       break;
 
     case IDC_CONTENT_CONTEXT_INSPECTELEMENT:
       Inspect(params_.x, params_.y);
       break;
@@ skipping 255 matching lines @@
   source_web_contents_->GetRenderViewHost()->
       ExecuteMediaPlayerActionAtLocation(location, action);
 }
 
 void RenderViewContextMenu::PluginActionAt(
     const gfx::Point& location,
     const WebPluginAction& action) {
   source_web_contents_->GetRenderViewHost()->
       ExecutePluginActionAtLocation(location, action);
 }