Extend FaviconService to support fetching favicons from a Google server

components/favicon/core/large_icon_service_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/core/large_icon_service.h"
 
 #include <deque>
 #include <memory>
 
 #include "base/bind.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted_memory.h"
 #include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
 #include "base/task/cancelable_task_tracker.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "components/favicon/core/favicon_client.h"
 #include "components/favicon/core/favicon_service.h"
 #include "components/favicon_base/fallback_icon_style.h"
 #include "components/favicon_base/favicon_types.h"
+#include "components/image_fetcher/image_fetcher.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "third_party/skia/include/core/SkColor.h"
 #include "ui/gfx/codec/png_codec.h"
 #include "ui/gfx/geometry/size.h"
 #include "ui/gfx/image/image.h"
 #include "url/gurl.h"
 
 namespace favicon {
 namespace {
@@ skipping 19 matching lines @@
   result.pixel_size = gfx::Size(w, h);
   result.icon_url = GURL(kDummyIconUrl);
   result.icon_type = favicon_base::TOUCH_ICON;
   CHECK(result.is_valid());
   return result;
 }
 
 // A mock FaviconService that emits pre-programmed response.
 class MockFaviconService : public FaviconService {
  public:
-  MockFaviconService() : FaviconService(nullptr, nullptr) {
+  MockFaviconService() : FaviconService(nullptr, nullptr, nullptr) {
   }
 
   ~MockFaviconService() override {
   }
 
   base::CancelableTaskTracker::TaskId GetLargestRawFaviconForPageURL(
       const GURL& page_url,
       const std::vector<int>& icon_types,
       int minimum_size_in_pixels,
       const favicon_base::FaviconRawBitmapCallback& callback,
@@ skipping 208 matching lines @@
       32,
       24,
       base::Bind(&LargeIconServiceTest::ResultCallback, base::Unretained(this)),
       &cancelable_task_tracker_);
   base::RunLoop().RunUntilIdle();
   EXPECT_TRUE(is_callback_invoked_);
 }
 
 }  // namespace
 }  // namespace favicon