Added the Vulkan Context Provider implementation.

cc/output/output_surface.h

 // Copyright 2012 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 CC_OUTPUT_OUTPUT_SURFACE_H_
 #define CC_OUTPUT_OUTPUT_SURFACE_H_
 
 #include <deque>
 #include <memory>
 
@@ skipping 40 matching lines @@
  public:
   OutputSurface(scoped_refptr<ContextProvider> context_provider,
                 scoped_refptr<ContextProvider> worker_context_provider,
 #if defined(ENABLE_VULKAN)
                 scoped_refptr<VulkanContextProvider> vulkan_context_provider,
 #endif
                 std::unique_ptr<SoftwareOutputDevice> software_device);
   OutputSurface(scoped_refptr<ContextProvider> context_provider,
                 scoped_refptr<ContextProvider> worker_context_provider);
   explicit OutputSurface(scoped_refptr<ContextProvider> context_provider);
-#if defined(ENABLE_VULKAN)
-  explicit OutputSurface(
-      scoped_refptr<VulkanContextProvider> vulkan_context_provider);
-#endif
   explicit OutputSurface(std::unique_ptr<SoftwareOutputDevice> software_device);
 
   OutputSurface(scoped_refptr<ContextProvider> context_provider,
                 std::unique_ptr<SoftwareOutputDevice> software_device);
 
   ~OutputSurface() override;
 
   struct Capabilities {
     Capabilities()
         : delegated_rendering(false),
@@ skipping 133 matching lines @@
   bool external_stencil_test_enabled_;
 
   base::WeakPtrFactory<OutputSurface> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(OutputSurface);
 };
 
 }  // namespace cc
 
 #endif  // CC_OUTPUT_OUTPUT_SURFACE_H_