[LargeIconService] Allow overriding request URL by a field trial param

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 121 matching lines @@
   LargeIconService large_icon_service_;
   base::HistogramTester histogram_tester_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(LargeIconServiceTest);
 };
 
 TEST_F(LargeIconServiceTest, ShouldGetFromGoogleServer) {
   const GURL kExpectedServerUrl(
       "https://t0.gstatic.com/faviconV2?client=chrome&drop_404_icon=true"
-      "&size=64&min_size=42&max_size=128&fallback_opts=TYPE,SIZE,URL"
+      "&size=32&min_size=42&max_size=64&fallback_opts=TYPE,SIZE,URL"
       "&url=http://www.example.com/");
 
   EXPECT_CALL(mock_favicon_service_, UnableToDownloadFavicon(_)).Times(0);
 
   base::MockCallback<base::Callback<void(bool success)>> callback;
   EXPECT_CALL(*mock_image_fetcher_,
               StartOrQueueNetworkRequest(_, kExpectedServerUrl, _))
       .WillOnce(PostFetchReply(gfx::Image::CreateFrom1xBitmap(
           CreateTestSkBitmap(64, 64, kTestColor))));
   EXPECT_CALL(mock_favicon_service_,
               SetLastResortFavicons(GURL(kDummyUrl), kExpectedServerUrl,
                                     favicon_base::IconType::TOUCH_ICON, _, _))
       .WillOnce(PostBoolReply(true));
 
   large_icon_service_
       .GetLargeIconOrFallbackStyleFromGoogleServerSkippingLocalCache(
           GURL(kDummyUrl), /*min_source_size_in_pixel=*/42, callback.Get());
 
   EXPECT_CALL(callback, Run(true));
   base::RunLoop().RunUntilIdle();
   histogram_tester_.ExpectUniqueSample(
       "Favicons.LargeIconService.DownloadedSize", 64, /*expected_count=*/1);
 }
 
 TEST_F(LargeIconServiceTest, ShouldGetFromGoogleServerWithOriginalUrl) {
   const GURL kExpectedServerUrl(
       "https://t0.gstatic.com/faviconV2?client=chrome&drop_404_icon=true"
-      "&size=64&min_size=42&max_size=128&fallback_opts=TYPE,SIZE,URL"
+      "&size=32&min_size=42&max_size=64&fallback_opts=TYPE,SIZE,URL"
       "&url=http://www.example.com/");
   const GURL kExpectedOriginalUrl("http://www.example.com/favicon.png");
 
   image_fetcher::RequestMetadata expected_metadata;
   expected_metadata.content_location_header = kExpectedOriginalUrl.spec();
   EXPECT_CALL(*mock_image_fetcher_,
               StartOrQueueNetworkRequest(_, kExpectedServerUrl, _))
       .WillOnce(PostFetchReplyWithMetadata(
           gfx::Image::CreateFrom1xBitmap(
               CreateTestSkBitmap(64, 64, kTestColor)),
           expected_metadata));
   EXPECT_CALL(mock_favicon_service_,
               SetLastResortFavicons(GURL(kDummyUrl), kExpectedOriginalUrl,
                                     favicon_base::IconType::TOUCH_ICON, _, _))
       .WillOnce(PostBoolReply(true));
 
   base::MockCallback<base::Callback<void(bool success)>> callback;
   large_icon_service_
       .GetLargeIconOrFallbackStyleFromGoogleServerSkippingLocalCache(
           GURL(kDummyUrl), /*min_source_size_in_pixel=*/42, callback.Get());
 
   EXPECT_CALL(callback, Run(true));
   base::RunLoop().RunUntilIdle();
 }
 
 TEST_F(LargeIconServiceTest, ShouldTrimQueryParametersForGoogleServer) {
   const GURL kDummyUrlWithQuery("http://www.example.com?foo=1");
   const GURL kExpectedServerUrl(
       "https://t0.gstatic.com/faviconV2?client=chrome&drop_404_icon=true"
-      "&size=64&min_size=42&max_size=128&fallback_opts=TYPE,SIZE,URL"
+      "&size=32&min_size=42&max_size=64&fallback_opts=TYPE,SIZE,URL"
       "&url=http://www.example.com/");
 
   EXPECT_CALL(*mock_image_fetcher_,
               StartOrQueueNetworkRequest(_, kExpectedServerUrl, _))
       .WillOnce(PostFetchReply(gfx::Image::CreateFrom1xBitmap(
           CreateTestSkBitmap(64, 64, kTestColor))));
   // Verify that the non-trimmed page URL is used when writing to the database.
   EXPECT_CALL(mock_favicon_service_,
               SetLastResortFavicons(_, kExpectedServerUrl, _, _, _));
 
@@ skipping 21 matching lines @@
   base::RunLoop().RunUntilIdle();
   EXPECT_THAT(histogram_tester_.GetAllSamples(
                   "Favicons.LargeIconService.DownloadedSize"),
               IsEmpty());
 }
 
 TEST_F(LargeIconServiceTest, ShouldReportUnavailableIfFetchFromServerFails) {
   const GURL kDummyUrlWithQuery("http://www.example.com?foo=1");
   const GURL kExpectedServerUrl(
       "https://t0.gstatic.com/faviconV2?client=chrome&drop_404_icon=true"
-      "&size=64&min_size=42&max_size=128&fallback_opts=TYPE,SIZE,URL"
+      "&size=32&min_size=42&max_size=64&fallback_opts=TYPE,SIZE,URL"
       "&url=http://www.example.com/");
 
   EXPECT_CALL(mock_favicon_service_, SetLastResortFavicons(_, _, _, _, _))
       .Times(0);
 
   base::MockCallback<base::Callback<void(bool success)>> callback;
   EXPECT_CALL(*mock_image_fetcher_,
               StartOrQueueNetworkRequest(_, kExpectedServerUrl, _))
       .WillOnce(PostFetchReply(gfx::Image()));
   EXPECT_CALL(mock_favicon_service_,
               UnableToDownloadFavicon(kExpectedServerUrl));
 
   large_icon_service_
       .GetLargeIconOrFallbackStyleFromGoogleServerSkippingLocalCache(
           kDummyUrlWithQuery, /*min_source_size_in_pixel=*/42, callback.Get());
 
   EXPECT_CALL(callback, Run(false));
   base::RunLoop().RunUntilIdle();
   // Verify that download failure gets recorded.
   histogram_tester_.ExpectUniqueSample(
       "Favicons.LargeIconService.DownloadedSize", 0, /*expected_count=*/1);
 }
 
 TEST_F(LargeIconServiceTest, ShouldNotGetFromGoogleServerIfUnavailable) {
   ON_CALL(
       mock_favicon_service_,
       WasUnableToDownloadFavicon(GURL(
           "https://t0.gstatic.com/faviconV2?client=chrome&drop_404_icon=true"
-          "&size=64&min_size=42&max_size=128&fallback_opts=TYPE,SIZE,URL"
+          "&size=32&min_size=42&max_size=64&fallback_opts=TYPE,SIZE,URL"
           "&url=http://www.example.com/")))
       .WillByDefault(Return(true));
 
   EXPECT_CALL(mock_favicon_service_, UnableToDownloadFavicon(_)).Times(0);
   EXPECT_CALL(*mock_image_fetcher_, StartOrQueueNetworkRequest(_, _, _))
       .Times(0);
   EXPECT_CALL(mock_favicon_service_, SetLastResortFavicons(_, _, _, _, _))
       .Times(0);
 
   base::MockCallback<base::Callback<void(bool success)>> callback;
@@ skipping 161 matching lines @@
 
 // Every test will appear with suffix /0 (param false) and /1 (param true), e.g.
 //  LargeIconServiceGetterTest.FallbackSinceTooPicky/0: get image.
 //  LargeIconServiceGetterTest.FallbackSinceTooPicky/1: get raw bitmap.
 INSTANTIATE_TEST_CASE_P(,  // Empty instatiation name.
                         LargeIconServiceGetterTest,
                         ::testing::Values(false, true));
 
 }  // namespace
 }  // namespace favicon