Calling OpenGL from the renderer process

- Added ability for renderer processes to render to a real window (Windows only so far).
- Added ability to create offscreen frame buffer objects that can be resized later.
- OpenGL context can have a "parent" context that can access its last swapped back buffer through a texture ID.
- Moved code to establish GPU channel from RenderWidget to RenderThread.
- Changed way service size command buffer object lifetimes are managed.
TEST=trybot and visual verification that OpenGL can clear the browser window to magenta.
BUG=none

Review URL: http://codereview.chromium.org/1136006

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@42679 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 9 insertions, 1 deletions

diff --git a/chrome/renderer/gpu_channel_host.h b/chrome/renderer/gpu_channel_host.h
index 00a6129..4b982bf 100644
--- a/chrome/renderer/gpu_channel_host.h
+++ b/chrome/renderer/gpu_channel_host.h
@@ -9,6 +9,8 @@
 
 #include "base/hash_tables.h"
 #include "chrome/common/message_router.h"
+#include "gfx/native_widget_types.h"
+#include "gfx/size.h"
 #include "ipc/ipc_channel.h"
 #include "ipc/ipc_message.h"
 #include "ipc/ipc_sync_channel.h"
@@ -52,7 +54,13 @@ class GpuChannelHost : public IPC::Channel::Listener,
   virtual bool Send(IPC::Message* msg);
 
   // Create and connect to a command buffer in the GPU process.
-  CommandBufferProxy* CreateCommandBuffer();
+  CommandBufferProxy* CreateViewCommandBuffer(gfx::NativeViewId view);
+
+  // Create and connect to a command buffer in the GPU process.
+  CommandBufferProxy* CreateOffscreenCommandBuffer(CommandBufferProxy* parent,
+                                                   const gfx::Size& size,
+                                                   uint32 parent_texture_id);
+
 
   // Destroy a command buffer created by this channel.
   void DestroyCommandBuffer(CommandBufferProxy* command_buffer);