Change glimage to accept a type.

content/common/gpu/client/gpu_memory_buffer_impl.h

Index: content/common/gpu/client/gpu_memory_buffer_impl.h
diff --git a/content/common/gpu/client/gpu_memory_buffer_impl.h b/content/common/gpu/client/gpu_memory_buffer_impl.h
index ee85f0f7b57ee02d73e5bca5e74ab26cf8cf77c6..8baf3c22e7a450561a7c55787141396dfd60c4af 100644
--- a/content/common/gpu/client/gpu_memory_buffer_impl.h
+++ b/content/common/gpu/client/gpu_memory_buffer_impl.h
@@ -17,7 +17,8 @@ class GpuMemoryBufferImpl : public gfx::GpuMemoryBuffer {
   static scoped_ptr<GpuMemoryBufferImpl> Create(
       gfx::GpuMemoryBufferHandle handle,
       gfx::Size size,
-      unsigned internalformat);
+      unsigned internalformat,
+      gfx::GpuMemoryBuffer::Usage usage);
 
   virtual ~GpuMemoryBufferImpl();
 
@@ -29,10 +30,13 @@ class GpuMemoryBufferImpl : public gfx::GpuMemoryBuffer {
   virtual uint32 GetStride() const OVERRIDE;
 
  protected:
-  GpuMemoryBufferImpl(gfx::Size size, unsigned internalformat);
+  GpuMemoryBufferImpl(gfx::Size size,
+                      unsigned internalformat,
+                      gfx::GpuMemoryBuffer::Usage usage);
 
   const gfx::Size size_;
   unsigned internalformat_;
+  gfx::GpuMemoryBuffer::Usage usage_;
   bool mapped_;
 
   DISALLOW_COPY_AND_ASSIGN(GpuMemoryBufferImpl);