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

components/favicon/core/large_icon_service_unittest.cc

Index: components/favicon/core/large_icon_service_unittest.cc
diff --git a/components/favicon/core/large_icon_service_unittest.cc b/components/favicon/core/large_icon_service_unittest.cc
index d5cabcb48fac46d8a79b418371093f98c841e627..ef463077010f4f6faedb63727ee92df29a1b0c5b 100644
--- a/components/favicon/core/large_icon_service_unittest.cc
+++ b/components/favicon/core/large_icon_service_unittest.cc
@@ -139,7 +139,7 @@ class LargeIconServiceTest : public testing::Test {
 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);
@@ -167,7 +167,7 @@ TEST_F(LargeIconServiceTest, ShouldGetFromGoogleServer) {
 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");
 
@@ -197,7 +197,7 @@ 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_,
@@ -239,7 +239,7 @@ 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(_, _, _, _, _))
@@ -268,7 +268,7 @@ TEST_F(LargeIconServiceTest, ShouldNotGetFromGoogleServerIfUnavailable) {
       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));