Change glimage to accept a type.

ui/gfx/gpu_memory_buffer.h

Index: ui/gfx/gpu_memory_buffer.h
diff --git a/ui/gfx/gpu_memory_buffer.h b/ui/gfx/gpu_memory_buffer.h
index de5094301df462cb399f102911025fb3f8def5f3..da63862973c5993d2db586dfb60960503221545f 100644
--- a/ui/gfx/gpu_memory_buffer.h
+++ b/ui/gfx/gpu_memory_buffer.h
@@ -65,8 +65,7 @@ struct GpuMemoryBufferHandle {
 // regular CPU code, but can also be read by the GPU.
 class GFX_EXPORT GpuMemoryBuffer {
  public:
-  enum AccessMode { READ_ONLY, WRITE_ONLY, READ_WRITE };
-
+  enum Usage { READ_WRITE, SCANOUT, USAGE_LAST = SCANOUT };

[reveman, 2014/04/30 11:31:28]

I don't think this needs to be part of this interface anymore. We can just use
the GLenums where needed just like we currently use internalformat GLenums. 

   GpuMemoryBuffer();
   virtual ~GpuMemoryBuffer();
 
@@ -75,7 +74,7 @@ class GFX_EXPORT GpuMemoryBuffer {
   // accessing the buffer or if CPU caches need to be synchronized. |mode|

[reveman, 2014/04/30 11:31:28]

Please update this comment.

   // indicate how the client intends to use the mapped buffer. Returns NULL on
   // failure.
-  virtual void* Map(AccessMode mode) = 0;
+  virtual void* Map() = 0;
 
   // Unmaps the buffer. It's illegal to use the pointer returned by Map() after
   // this has been called.