Add UMA metrics for blocked plugins.

chrome/browser/ui/blocked_content/blocked_content_tab_helper.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/ui/blocked_content/blocked_content_tab_helper.h"
 
 #include "base/auto_reset.h"
 #include "chrome/browser/content_settings/host_content_settings_map.h"
 #include "chrome/browser/content_settings/tab_specific_content_settings.h"
 #include "chrome/browser/profiles/profile.h"
@@ skipping 86 matching lines @@
                                    initial_pos,
                                    true);  // user_gesture
   } else {
     // Call blocked_contents_->AddTabContents with user_gesture == true
     // so that the contents will not get blocked again.
     blocked_contents_->AddTabContents(new_contents,
                                       NEW_POPUP,
                                       initial_pos,
                                       true);  // user_gesture
     tab_contents_wrapper_->content_settings()->OnContentBlocked(
-          CONTENT_SETTINGS_TYPE_POPUPS, std::string());
+          CONTENT_SETTINGS_TYPE_POPUPS, std::string(), CONTENT_SETTING_BLOCK);
   }
 }
 
 void BlockedContentTabHelper::LaunchForContents(
     TabContentsWrapper* tab_contents) {
   blocked_contents_->LaunchForContents(tab_contents);
   if (!blocked_contents_->GetBlockedContentsCount())
     PopupNotificationVisibilityChanged(false);
 }
 
 size_t BlockedContentTabHelper::GetBlockedContentsCount() const {
   return blocked_contents_->GetBlockedContentsCount();
 }
 
 void BlockedContentTabHelper::GetBlockedContents(
     std::vector<TabContentsWrapper*>* blocked_contents) const {
   blocked_contents_->GetBlockedContents(blocked_contents);
 }