content: Use type-parameterized tests for GpuMemoryBuffer implementations.

content/common/gpu/client/gpu_memory_buffer_impl_io_surface.h

Index: content/common/gpu/client/gpu_memory_buffer_impl_io_surface.h
diff --git a/content/common/gpu/client/gpu_memory_buffer_impl_io_surface.h b/content/common/gpu/client/gpu_memory_buffer_impl_io_surface.h
index d2249386dec1c6e4a72789bdc17306e88518e775..90e389246072d5e875c4925aa84c984cf62c18d5 100644
--- a/content/common/gpu/client/gpu_memory_buffer_impl_io_surface.h
+++ b/content/common/gpu/client/gpu_memory_buffer_impl_io_surface.h
@@ -15,13 +15,21 @@ namespace content {
 // Implementation of GPU memory buffer based on IO surfaces.
 class GpuMemoryBufferImplIOSurface : public GpuMemoryBufferImpl {
  public:
-  static scoped_ptr<GpuMemoryBufferImpl> CreateFromHandle(
+  static scoped_ptr<GpuMemoryBufferImplIOSurface> CreateFromHandle(
       const gfx::GpuMemoryBufferHandle& handle,
       const gfx::Size& size,
       gfx::BufferFormat format,
       gfx::BufferUsage usage,
       const DestructionCallback& callback);
 
+  static bool IsConfigurationSupported(gfx::BufferFormat format,
+                                       gfx::BufferUsage usage);
+
+  static base::Closure AllocateForTesting(const gfx::Size& size,
+                                          gfx::BufferFormat format,
+                                          gfx::BufferUsage usage,
+                                          gfx::GpuMemoryBufferHandle* handle);
+
   // Overridden from gfx::GpuMemoryBuffer:
   bool Map(void** data) override;
   void Unmap() override;