content: Use type-parameterized tests for GpuMemoryBuffer implementations.

content/common/gpu/gpu_memory_buffer_factory.h

 // Copyright 2014 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_COMMON_GPU_GPU_MEMORY_BUFFER_FACTORY_H_
 #define CONTENT_COMMON_GPU_GPU_MEMORY_BUFFER_FACTORY_H_
 
 #include <vector>
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "content/common/content_export.h"
 #include "ui/gfx/geometry/size.h"
 #include "ui/gfx/gpu_memory_buffer.h"
 #include "ui/gfx/native_widget_types.h"
 
 namespace gfx {
 class GLImage;
 }
 
 namespace gpu {
 class ImageFactory;
 }
 
 namespace content {
 
 class CONTENT_EXPORT GpuMemoryBufferFactory {
  public:
-  struct Configuration {
-    gfx::BufferFormat format;
-    gfx::BufferUsage usage;
-  };
-
   virtual ~GpuMemoryBufferFactory() {}
 
-  // Gets system supported GPU memory buffer factory types. Preferred type at
-  // the front of vector.
-  static void GetSupportedTypes(std::vector<gfx::GpuMemoryBufferType>* types);
+  // Returns the native GPU memory buffer factory type. Returns EMPTY_BUFFER
+  // type if native buffers are not supported.
+  static gfx::GpuMemoryBufferType GetNativeType();
 
-  // Creates a new factory instance for |type|.
-  static scoped_ptr<GpuMemoryBufferFactory> Create(
-      gfx::GpuMemoryBufferType type);
-
-  // Gets supported format/usage configurations.
-  virtual void GetSupportedGpuMemoryBufferConfigurations(
-      std::vector<Configuration>* configurations) = 0;
+  // Creates a new factory instance for native GPU memory buffers.
+  static scoped_ptr<GpuMemoryBufferFactory> CreateNativeType();
 
   // Creates a new GPU memory buffer instance. A valid handle is returned on
   // success. It can be called on any thread.
   virtual gfx::GpuMemoryBufferHandle CreateGpuMemoryBuffer(
       gfx::GpuMemoryBufferId id,
       const gfx::Size& size,
       gfx::BufferFormat format,
       gfx::BufferUsage usage,
       int client_id,
       gfx::PluginWindowHandle surface_handle) = 0;
 
   // Destroys GPU memory buffer identified by |id|.
   // It can be called on any thread.
   virtual void DestroyGpuMemoryBuffer(gfx::GpuMemoryBufferId id,
                                       int client_id) = 0;
 
   // Type-checking downcast routine.
   virtual gpu::ImageFactory* AsImageFactory() = 0;
 
  protected:
   GpuMemoryBufferFactory() {}
 
  private:
   DISALLOW_COPY_AND_ASSIGN(GpuMemoryBufferFactory);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_COMMON_GPU_GPU_MEMORY_BUFFER_FACTORY_H_