Plumb GpuMemoryBuffer allocation to GPU process.

ui/gfx/gpu_memory_buffer.h

 // Copyright 2013 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 UI_GFX_GPU_MEMORY_BUFFER_H_
 #define UI_GFX_GPU_MEMORY_BUFFER_H_
 
 #include "base/memory/shared_memory.h"
 #include "build/build_config.h"
 #include "ui/gfx/gfx_export.h"
+#include "ui/gfx/native_widget_types.h"
 
 #if defined(OS_ANDROID)
 #include <third_party/khronos/EGL/egl.h>
 #endif
 
 namespace gfx {
 
 enum GpuMemoryBufferType {
   EMPTY_BUFFER,
   SHARED_MEMORY_BUFFER,
   IO_SURFACE_BUFFER,
   ANDROID_NATIVE_BUFFER,
   SURFACE_TEXTURE_BUFFER,
   GPU_MEMORY_BUFFER_TYPE_LAST = SURFACE_TEXTURE_BUFFER
 };
 
 #if defined(OS_ANDROID)
 struct SurfaceTextureId {
   SurfaceTextureId() : primary_id(0), secondary_id(0) {}
   SurfaceTextureId(int32 primary_id, int32 secondary_id)
       : primary_id(primary_id), secondary_id(secondary_id) {}
   int32 primary_id;
   int32 secondary_id;
 };
 #endif
 
+struct GpuMemoryBufferParams {

[reveman, 2014/05/27 22:46:01]

I don't think we need this. Some of the fields in this struct belong in
GpuMemoryBufferHandle.

We might want to rename and reuse the SurfaceTextureId struct for other types of
buffers but I prefer if we do that as a follow up when switching our surface
texture support over to gpu process creation of buffers.

[alexst (slow to review), 2014/05/28 14:18:57]

I'll move the relevant fields into GpuMemoryBufferHandle, but mostly I added
this struct because PosTask ran out of variables once yuo add width, height,
etc.

[reveman, 2014/05/28 16:42:26]

Ok, hopefully not needed in the final patch but in case it is, we should try to
handle it locally instead of adding something to this file.

+  GpuMemoryBufferParams()
+      : width(0),
+        height(0),
+        internalformat(0),
+        usage(0),
+        window(kNullPluginWindow),
+        process_handle(base::kNullProcessHandle),
+        client_id(-1) {}
+  size_t width;
+  size_t height;
+  unsigned internalformat;
+  unsigned usage;
+  gfx::PluginWindowHandle window;
+  base::ProcessHandle process_handle;
+  int client_id;
+};
+
 struct GpuMemoryBufferHandle {
   GpuMemoryBufferHandle()
       : type(EMPTY_BUFFER),
         handle(base::SharedMemory::NULLHandle())
 #if defined(OS_MACOSX)
         ,
         io_surface_id(0u)
 #endif
 #if defined(OS_ANDROID)
         ,
@@ skipping 37 matching lines @@
   // Returns the stride in bytes for the buffer.
   virtual uint32 GetStride() const = 0;
 
   // Returns a platform specific handle for this buffer.
   virtual GpuMemoryBufferHandle GetHandle() const = 0;
 };
 
 }  // namespace gfx
 
 #endif  // UI_GFX_GPU_MEMORY_BUFFER_H_