Fixed compile- and link-time errors with the "enable_vulkan" GN-argument

content/browser/compositor/vulkan_browser_compositor_output_surface.h

 // Copyright (c) 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 CONTENT_BROWSER_COMPOSITOR_VULKAN_BROWSER_COMPOSITOR_OUTPUT_SURFACE_H_
 #define CONTENT_BROWSER_COMPOSITOR_VULKAN_BROWSER_COMPOSITOR_OUTPUT_SURFACE_H_
 
 #include <memory>
 
 #include "base/macros.h"
+#include "cc/output/output_surface_frame.h"
 #include "content/browser/compositor/browser_compositor_output_surface.h"
 #include "ui/gfx/native_widget_types.h"
 
 namespace gpu {
 class VulkanSurface;
 }
 
 namespace content {
 
 class VulkanBrowserCompositorOutputSurface
     : public BrowserCompositorOutputSurface {
  public:
   VulkanBrowserCompositorOutputSurface(
       scoped_refptr<cc::VulkanContextProvider> context,
       scoped_refptr<ui::CompositorVSyncManager> vsync_manager,
       cc::SyntheticBeginFrameSource* begin_frame_source);
 
   ~VulkanBrowserCompositorOutputSurface() override;
 
   bool Initialize(gfx::AcceleratedWidget widget);
   void Destroy();
 
-  // BrowserCompositorOutputSurface implementation.
-  void OnGpuSwapBuffersCompleted(
-      const std::vector<ui::LatencyInfo>& latency_info,
-      gfx::SwapResult result,
-      const gpu::GpuProcessHostedCALayerTreeParamsMac* params_mac) override;
-
- protected:
   // cc::OutputSurface implementation.
-  void SwapBuffers(cc::CompositorFrame* frame) override;
+  void EnsureBackbuffer() override;
+  void DiscardBackbuffer() override;
+  void BindFramebuffer() override;
+  bool IsDisplayedAsOverlayPlane() const override;
+  unsigned GetOverlayTextureId() const override;
+  bool SurfaceIsSuspendForRecycle() const override;
+  void Reshape(const gfx::Size& size,
+               float device_scale_factor,
+               const gfx::ColorSpace& color_space,
+               bool has_alpha) override;
+  uint32_t GetFramebufferCopyTextureFormat() override;
+  void SwapBuffers(cc::OutputSurfaceFrame frame) override;
 
  private:
   std::unique_ptr<gpu::VulkanSurface> surface_;
 
   DISALLOW_COPY_AND_ASSIGN(VulkanBrowserCompositorOutputSurface);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_COMPOSITOR_VULKAN_BROWSER_COMPOSITOR_OUTPUT_SURFACE_H_