Add UMA metrics for blocked plugins.

chrome/browser/content_settings/tab_specific_content_settings_unittest.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/content_settings/tab_specific_content_settings.h"
 #include "chrome/test/base/testing_profile.h"
 #include "content/browser/browser_thread.h"
 #include "content/browser/renderer_host/test_render_view_host.h"
 #include "content/browser/tab_contents/test_tab_contents.h"
 #include "net/base/cookie_monster.h"
@@ skipping 22 matching lines @@
   EXPECT_FALSE(
       content_settings.IsContentBlocked(CONTENT_SETTINGS_TYPE_PLUGINS));
   EXPECT_FALSE(
       content_settings.IsContentBlocked(CONTENT_SETTINGS_TYPE_COOKIES));
   EXPECT_FALSE(content_settings.IsContentBlocked(CONTENT_SETTINGS_TYPE_POPUPS));
 
   // Set a cookie, block access to images, block a popup.
   content_settings.OnCookieChanged(
       GURL("http://google.com"), "A=B", options, false);
   content_settings.OnContentBlocked(CONTENT_SETTINGS_TYPE_IMAGES,
-                                    std::string());
+                                    std::string(), CONTENT_SETTING_BLOCK);
   content_settings.SetPopupsBlocked(true);
 
   // Check that only the respective content types are affected.
   EXPECT_TRUE(content_settings.IsContentBlocked(CONTENT_SETTINGS_TYPE_IMAGES));
   EXPECT_FALSE(
       content_settings.IsContentBlocked(CONTENT_SETTINGS_TYPE_JAVASCRIPT));
   EXPECT_FALSE(
       content_settings.IsContentBlocked(CONTENT_SETTINGS_TYPE_PLUGINS));
   EXPECT_FALSE(
       content_settings.IsContentBlocked(CONTENT_SETTINGS_TYPE_COOKIES));
@@ skipping 74 matching lines @@
       content_settings.IsContentAccessed(CONTENT_SETTINGS_TYPE_COOKIES));
   ASSERT_FALSE(
       content_settings.IsContentBlocked(CONTENT_SETTINGS_TYPE_COOKIES));
   content_settings.OnCookiesRead(
       GURL("http://google.com"), net::CookieList(), true);
   ASSERT_FALSE(
       content_settings.IsContentAccessed(CONTENT_SETTINGS_TYPE_COOKIES));
   ASSERT_FALSE(
       content_settings.IsContentBlocked(CONTENT_SETTINGS_TYPE_COOKIES));
 }