Add |SetImageDownloadLimit| to ImageFetcher to limit downloaded bytes

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"
@@ skipping 69 matching lines @@
   CHECK(result.is_valid());
   return result;
 }
 
 class MockImageFetcher : public image_fetcher::ImageFetcher {
  public:
   MOCK_METHOD1(SetImageFetcherDelegate,
                void(image_fetcher::ImageFetcherDelegate* delegate));
   MOCK_METHOD1(SetDataUseServiceName,
                void(image_fetcher::ImageFetcher::DataUseServiceName name));
+  MOCK_METHOD1(SetImageDownloadLimit,
+               void(base::Optional<int64_t> max_download_bytes));
   MOCK_METHOD1(SetDesiredImageFrameSize, void(const gfx::Size& size));
   MOCK_METHOD3(StartOrQueueNetworkRequest,
                void(const std::string&,
                     const GURL&,
                     const ImageFetcherCallback&));
   MOCK_METHOD0(GetImageDecoder, image_fetcher::ImageDecoder*());
 };
 
 class LargeIconServiceTest : public testing::Test {
  public:
@@ skipping 273 matching lines @@
   large_icon_service_
       .GetLargeIconOrFallbackStyleFromGoogleServerSkippingLocalCache(
           GURL(kDummyUrl), /*min_source_size_in_pixel=*/42, callback.Get());
 
   EXPECT_CALL(callback, Run(false));
   base::RunLoop().RunUntilIdle();
 }
 
 }  // namespace
 }  // namespace favicon