Remove unused EnableAdviewSrcAttribute command line flag.

chrome/browser/about_flags.cc

 // Copyright (c) 2012 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/about_flags.h"
 
 #include <algorithm>
 #include <iterator>
 #include <map>
 #include <set>
@@ skipping 665 matching lines @@
     SINGLE_VALUE_TYPE(switches::kEnableFastUnload)
   },
   {
     "enable-adview",
     IDS_FLAGS_ENABLE_ADVIEW_NAME,
     IDS_FLAGS_ENABLE_ADVIEW_DESCRIPTION,
     kOsDesktop,
     SINGLE_VALUE_TYPE(switches::kEnableAdview)
   },
   {
-    "enable-adview-src-attribute",
-    IDS_FLAGS_ENABLE_ADVIEW_SRC_ATTRIBUTE_NAME,
-    IDS_FLAGS_ENABLE_ADVIEW_SRC_ATTRIBUTE_DESCRIPTION,
-    kOsDesktop,
-    SINGLE_VALUE_TYPE(switches::kEnableAdviewSrcAttribute)
-  },
-  {
     "enable-app-window-controls",
     IDS_FLAGS_ENABLE_APP_WINDOW_CONTROLS_NAME,
     IDS_FLAGS_ENABLE_APP_WINDOW_CONTROLS_DESCRIPTION,
     kOsDesktop,
     SINGLE_VALUE_TYPE(switches::kEnableAppWindowControls)
   },
   {
     "apps-new-install-bubble",
     IDS_FLAGS_APPS_NEW_INSTALL_BUBBLE_NAME,
     IDS_FLAGS_APPS_NEW_INSTALL_BUBBLE_DESCRIPTION,
@@ skipping 1803 matching lines @@
 }
 
 const Experiment* GetExperiments(size_t* count) {
   *count = num_experiments;
   return experiments;
 }
 
 }  // namespace testing
 
 }  // namespace about_flags