cc: Make most of cc::OutputSurface abstract.

content/browser/compositor/reflector_impl_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 "base/memory/ptr_util.h"
 #include "base/run_loop.h"
 #include "base/single_thread_task_runner.h"
 #include "build/build_config.h"
 #include "cc/output/compositor_frame.h"
 #include "cc/scheduler/begin_frame_source.h"
@@ skipping 72 matching lines @@
       : BrowserCompositorOutputSurface(std::move(context_provider),
                                        std::move(vsync_manager),
                                        begin_frame_source,
                                        CreateTestValidatorOzone()) {
     surface_size_ = gfx::Size(256, 256);
     device_scale_factor_ = 1.f;
   }
 
   void SetFlip(bool flip) { capabilities_.flipped_output_surface = flip; }
 
+  void EnsureBackbuffer() override {}
+  void DiscardBackbuffer() override {}
+  void BindFramebuffer() override {}
   void SwapBuffers(cc::CompositorFrame frame) override {}
   uint32_t GetFramebufferCopyTextureFormat() override { return GL_RGB; }
+  bool IsDisplayedAsOverlayPlane() const override { return false; }
+  unsigned GetOverlayTextureId() const override { return 0; }
+  bool SurfaceIsSuspendForRecycle() const override { return false; }
 
   void OnReflectorChanged() override {
     if (!reflector_) {
       reflector_texture_.reset();
     } else {
       reflector_texture_.reset(new ReflectorTexture(context_provider()));
       reflector_->OnSourceTextureMailboxUpdated(reflector_texture_->mailbox());
     }
   }
 
@@ skipping 121 matching lines @@
   plane_2.plane_z_order = 1;
   list.push_back(plane_1);
   list.push_back(plane_2);
   output_surface_->GetOverlayCandidateValidator()->CheckOverlaySupport(&list);
   EXPECT_FALSE(list[0].overlay_handled);
 }
 #endif  // defined(USE_OZONE)
 
 }  // namespace
 }  // namespace content