gpu: Add support for GLX_EXT_texture_from_pixmap extension.

content/common/gpu/gpu_messages.h

Index: content/common/gpu/gpu_messages.h
diff --git a/content/common/gpu/gpu_messages.h b/content/common/gpu/gpu_messages.h
index 82af22cdaf15685295f60a364fecbc36ebe690b7..853c225e96c2e82db0f6d317b649345518caece5 100644
--- a/content/common/gpu/gpu_messages.h
+++ b/content/common/gpu/gpu_messages.h
@@ -238,6 +238,18 @@ IPC_MESSAGE_CONTROL4(GpuMsg_CreateViewCommandBuffer,
                      int32, /* client_id */
                      GPUCreateCommandBufferConfig /* init_params */)
 
+// Tells the GPU process to create a new image from a window. Images
+// can be bound to textures using CHROMIUM_texture_from_image.
+IPC_MESSAGE_CONTROL3(GpuMsg_CreateImage,
+                     gfx::PluginWindowHandle, /* window */
+                     int32, /* client_id */
+                     int32 /* image_id */)
+
+// Tells the GPU process to delete image.
+IPC_MESSAGE_CONTROL2(GpuMsg_DeleteImage,
+                     int32, /* client_id */
+                     int32 /* image_id */)
+
 // Tells the GPU process to create a context for collecting graphics card
 // information.
 IPC_MESSAGE_CONTROL0(GpuMsg_CollectGraphicsInfo)
@@ -311,6 +323,10 @@ IPC_MESSAGE_CONTROL1(GpuHostMsg_CommandBufferCreated,
 IPC_MESSAGE_CONTROL1(GpuHostMsg_DestroyCommandBuffer,
                      int32 /* surface_id */)
 
+// Response from GPU to a GpuMsg_CreateImage message.
+IPC_MESSAGE_CONTROL1(GpuHostMsg_ImageCreated,
+                     gfx::Size /* size */)
+
 // Response from GPU to a GpuMsg_CollectGraphicsInfo.
 IPC_MESSAGE_CONTROL1(GpuHostMsg_GraphicsInfoCollected,
                      content::GPUInfo /* GPU logging stats */)