Implementing URL prefix match for history thumbnail cache.

chrome/browser/extensions/extension_service.cc

 // Copyright (c) 2013 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_service.h"
 
 #include <algorithm>
 #include <iterator>
 #include <set>
 
@@ skipping 1159 matching lines @@
   if (extensions::PermissionsData::HasHostPermission(
           extension, GURL(chrome::kChromeUIThemeURL))) {
     ThemeSource* theme_source = new ThemeSource(profile_);
     content::URLDataSource::Add(profile_, theme_source);
   }
 #endif
 
   // Same for chrome://thumb/ resources.
   if (extensions::PermissionsData::HasHostPermission(
           extension, GURL(chrome::kChromeUIThumbnailURL))) {
-    ThumbnailSource* thumbnail_source = new ThumbnailSource(profile_);
+    ThumbnailSource* thumbnail_source = new ThumbnailSource(profile_, false);
     content::URLDataSource::Add(profile_, thumbnail_source);
   }
 }
 
 void ExtensionService::NotifyExtensionUnloaded(
     const Extension* extension,
     extension_misc::UnloadedExtensionReason reason) {
   UnloadedExtensionInfo details(extension, reason);
   content::NotificationService::current()->Notify(
       chrome::NOTIFICATION_EXTENSION_UNLOADED,
@@ skipping 1964 matching lines @@
 }
 
 void ExtensionService::AddUpdateObserver(extensions::UpdateObserver* observer) {
   update_observers_.AddObserver(observer);
 }
 
 void ExtensionService::RemoveUpdateObserver(
     extensions::UpdateObserver* observer) {
   update_observers_.RemoveObserver(observer);
 }