FrameGenerator should receive SurfaceInfo and use it in frame generation

services/ui/ws/test_utils.h

 // Copyright 2016 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.
 
 #ifndef SERVICES_UI_WS_TEST_UTILS_H_
 #define SERVICES_UI_WS_TEST_UTILS_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 267 matching lines @@
   mojom::Cursor* cursor_storage_;
 
   DISALLOW_COPY_AND_ASSIGN(TestPlatformDisplayFactory);
 };
 
 // -----------------------------------------------------------------------------
 
 // A stub implementation of FrameGeneratorDelegate.
 class TestFrameGeneratorDelegate : public FrameGeneratorDelegate {
  public:
-  TestFrameGeneratorDelegate(ServerWindow* root_window);
+  TestFrameGeneratorDelegate();
   ~TestFrameGeneratorDelegate() override;
 
   // FrameGeneratorDelegate:
-  ServerWindow* GetActiveRootWindow() override;
   bool IsInHighContrastMode() override;
 
- private:
-  ServerWindow* root_window_;
-
   DISALLOW_COPY_AND_ASSIGN(TestFrameGeneratorDelegate);
 };
 
 // -----------------------------------------------------------------------------
 
 class TestWindowManager : public mojom::WindowManager {
  public:
   TestWindowManager()
       : got_create_top_level_window_(false),
         change_id_(0u),
@@ skipping 365 matching lines @@
 ServerWindow* NewWindowInTree(WindowTree* tree, ClientWindowId* client_id);
 ServerWindow* NewWindowInTreeWithParent(WindowTree* tree,
                                         ServerWindow* parent,
                                         ClientWindowId* client_id);
 
 }  // namespace test
 }  // namespace ws
 }  // namespace ui
 
 #endif  // SERVICES_UI_WS_TEST_UTILS_H_