Extend FaviconService to support fetching favicons from a Google server

components/favicon/content/content_favicon_driver_unittest.cc

 // Copyright 2015 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 "components/favicon/content/content_favicon_driver.h"
 
 #include <memory>
 
 #include "base/macros.h"
 #include "components/favicon/core/favicon_client.h"
 #include "components/favicon/core/favicon_handler.h"
 #include "components/favicon/core/favicon_service.h"
+#include "components/image_fetcher/image_fetcher.h"
 #include "content/public/browser/web_contents_observer.h"
 #include "content/public/common/favicon_url.h"
 #include "content/public/test/test_renderer_host.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "ui/gfx/favicon_size.h"
 
 namespace favicon {
 namespace {
 
 class ContentFaviconDriverTest : public content::RenderViewHostTestHarness {
  public:
   ContentFaviconDriverTest() {}
 
   ~ContentFaviconDriverTest() override {}
 
   // content::RenderViewHostTestHarness:
   void SetUp() override {
     RenderViewHostTestHarness::SetUp();
 
-    favicon_service_.reset(new FaviconService(nullptr, nullptr));
+    favicon_service_.reset(new FaviconService(nullptr, nullptr, nullptr));
     ContentFaviconDriver::CreateForWebContents(
         web_contents(), favicon_service(), nullptr, nullptr);
   }
 
   FaviconService* favicon_service() {
     return favicon_service_.get();
   }
 
  private:
   std::unique_ptr<FaviconService> favicon_service_;
@@ skipping 79 matching lines @@
       favicon::ContentFaviconDriver::FromWebContents(web_contents());
   static_cast<content::WebContentsObserver*>(driver)
       ->DidUpdateFaviconURL(favicon_urls);
 
   // Test that ContentFaviconDriver ignored the favicon url update.
   EXPECT_TRUE(driver->favicon_urls().empty());
 }
 
 }  // namespace
 }  // namespace favicon