Query the preferred readback config in CopyFromBackingStore

content/browser/renderer_host/render_widget_host_view_browsertest.cc

 // Copyright (c) 2013 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 "base/command_line.h"
 #include "base/message_loop/message_loop_proxy.h"
 #include "base/path_service.h"
 #include "base/run_loop.h"
 #include "content/browser/gpu/compositor_util.h"
 #include "content/browser/gpu/gpu_data_manager_impl.h"
@@ skipping 154 matching lines @@
     int count_attempts = 0;
     while (true) {
       ++count_attempts;
       base::RunLoop run_loop;
       GetRenderViewHost()->CopyFromBackingStore(
           gfx::Rect(),
           frame_size(),
           base::Bind(
               &RenderWidgetHostViewBrowserTest::FinishCopyFromBackingStore,
               base::Unretained(this),
-              run_loop.QuitClosure()));
+              run_loop.QuitClosure()),
+          SkBitmap::kARGB_8888_Config);
       run_loop.Run();
 
       if (frames_captured())
         break;
       else
         GiveItSomeTime();
     }
 
     EXPECT_EQ(count_attempts, callback_invoke_count());
     EXPECT_EQ(1, frames_captured());
@@ skipping 183 matching lines @@
 // even when the RenderWidgetHost is deleting in the middle of an async copy.
 IN_PROC_BROWSER_TEST_P(CompositingRenderWidgetHostViewBrowserTest,
                        CopyFromBackingStore_CallbackDespiteDelete) {
   SET_UP_SURFACE_OR_PASS_TEST(NULL);
 
   base::RunLoop run_loop;
   GetRenderViewHost()->CopyFromBackingStore(
       gfx::Rect(),
       frame_size(),
       base::Bind(&RenderWidgetHostViewBrowserTest::FinishCopyFromBackingStore,
-                 base::Unretained(this), run_loop.QuitClosure()));
+                 base::Unretained(this),
+                 run_loop.QuitClosure()),
+      SkBitmap::kARGB_8888_Config);
   // Delete the surface before the callback is run.
   GetRenderWidgetHostViewPort()->AcceleratedSurfaceRelease();
   run_loop.Run();
 
   EXPECT_EQ(1, callback_invoke_count());
 }
 
 // Tests that the callback passed to CopyFromCompositingSurfaceToVideoFrame is
 // always called, even when the RenderWidgetHost is deleting in the middle of
 // an async copy.
@@ skipping 554 matching lines @@
                         CompositingRenderWidgetHostViewBrowserTestTabCapture,
                         testing::ValuesIn(kAllCompositingModes));
 INSTANTIATE_TEST_CASE_P(GLAndSoftwareCompositing,
                         CompositingRenderWidgetHostViewTabCaptureHighDPI,
                         testing::ValuesIn(kAllCompositingModes));
 
 #endif  // !defined(OS_ANDROID) && !defined(OS_IOS)
 
 }  // namespace
 }  // namespace content