Added initial implementation of the Vulkan Context Provider.

cc/output/vulkan_context_provider.h

Index: cc/output/vulkan_context_provider.h
diff --git a/cc/output/vulkan_context_provider.h b/cc/output/vulkan_context_provider.h
new file mode 100644
index 0000000000000000000000000000000000000000..6b50128cdaabc30abf4a094723335da09fc15a4e
--- /dev/null
+++ b/cc/output/vulkan_context_provider.h
@@ -0,0 +1,29 @@
+// 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 CC_OUTPUT_VULKAN_CONTEXT_PROVIDER_H_
+#define CC_OUTPUT_VULKAN_CONTEXT_PROVIDER_H_
+
+#include "base/memory/ref_counted.h"
+
+namespace gpu {
+class VulkanDeviceQueue;
+}
+
+namespace cc {
+
+// The VulkanContextProvider groups sharing of vulkan objects synchronously.
+class VulkanContextProvider
+    : public base::RefCountedThreadSafe<VulkanContextProvider> {
+ public:
+  virtual gpu::VulkanDeviceQueue* GetDeviceQueue() = 0;
+
+ protected:
+  friend class base::RefCountedThreadSafe<VulkanContextProvider>;
+  virtual ~VulkanContextProvider() {}
+};
+
+}  // namespace cc
+
+#endif  // CC_OUTPUT_VULKAN_CONTEXT_PROVIDER_H_