cc: Route offscreen context creation for compositor to the browser.

webkit/compositor_bindings/web_layer_tree_view_impl.cc

Index: webkit/compositor_bindings/web_layer_tree_view_impl.cc
diff --git a/webkit/compositor_bindings/web_layer_tree_view_impl.cc b/webkit/compositor_bindings/web_layer_tree_view_impl.cc
index d2c8da314a7c3855dbc2332b33a98b1602d50b44..58023ff8b7769019170fad31f30e15a5cd2163a8 100644
--- a/webkit/compositor_bindings/web_layer_tree_view_impl.cc
+++ b/webkit/compositor_bindings/web_layer_tree_view_impl.cc
@@ -17,6 +17,7 @@
 #include "third_party/WebKit/Source/Platform/chromium/public/WebLayerTreeViewClient.h"
 #include "third_party/WebKit/Source/Platform/chromium/public/WebLayerTreeView.h"
 #include "third_party/WebKit/Source/Platform/chromium/public/WebRenderingStats.h"
+#include "third_party/WebKit/Source/Platform/chromium/public/WebSharedGraphicsContext3D.h"
 #include "third_party/WebKit/Source/Platform/chromium/public/WebSize.h"
 #include "web_layer_impl.h"
 #include "web_to_ccinput_handler_adapter.h"
@@ -265,6 +266,18 @@ void WebLayerTreeViewImpl::didRecreateOutputSurface(bool success)
     m_client->didRecreateOutputSurface(success);
 }
 
+WebKit::WebGraphicsContext3D* WebLayerTreeViewImpl::OffscreenContext3dForMainThread()
+{
+    return WebSharedGraphicsContext3D::mainThreadContext();

[danakj, 2013/02/12 07:34:04]

Should this be going right to the webkit/ version of WebKitPlatformSupport in
the future?

+}
+
+WebKit::WebGraphicsContext3D* WebLayerTreeViewImpl::OffscreenContext3dForCompositorThread()
+{
+    if (!WebSharedGraphicsContext3D::haveCompositorThreadContext() && !WebSharedGraphicsContext3D::createCompositorThreadContext())
+        return NULL;
+    return WebSharedGraphicsContext3D::compositorThreadContext();
+}
+
 scoped_ptr<InputHandler> WebLayerTreeViewImpl::createInputHandler()
 {
     scoped_ptr<InputHandler> ret;