Android WebView: Fix some GLSL WebGL conformance tests

content/browser/android/in_process/synchronous_compositor_factory_impl.cc

Index: content/browser/android/in_process/synchronous_compositor_factory_impl.cc
diff --git a/content/browser/android/in_process/synchronous_compositor_factory_impl.cc b/content/browser/android/in_process/synchronous_compositor_factory_impl.cc
index 4449ca19fa4df556499d5dc7f75fd10d6e6b8da0..f8c0642e7a4187af6ab992fc95ea0b8e9bace10d 100644
--- a/content/browser/android/in_process/synchronous_compositor_factory_impl.cc
+++ b/content/browser/android/in_process/synchronous_compositor_factory_impl.cc
@@ -86,6 +86,18 @@ scoped_ptr<WebGraphicsContext3DInProcessCommandBufferImpl> WrapContext(
           context.Pass(), GetDefaultAttribs()));
 }
 
+scoped_ptr<WebGraphicsContext3DInProcessCommandBufferImpl>
+WrapContextWithAttributes(
+    scoped_ptr<gpu::GLInProcessContext> context,
+    const blink::WebGraphicsContext3D::Attributes& attributes) {
+  if (!context.get())
+    return scoped_ptr<WebGraphicsContext3DInProcessCommandBufferImpl>();
+
+  return scoped_ptr<WebGraphicsContext3DInProcessCommandBufferImpl>(
+      WebGraphicsContext3DInProcessCommandBufferImpl::WrapContext(
+          context.Pass(), attributes));
+}
+
 class VideoContextProvider
     : public StreamTextureFactorySynchronousImpl::ContextProvider {
  public:
@@ -203,7 +215,8 @@ SynchronousCompositorFactoryImpl::CreateStreamTextureFactory(int frame_id) {
 blink::WebGraphicsContext3D*
 SynchronousCompositorFactoryImpl::CreateOffscreenGraphicsContext3D(
     const blink::WebGraphicsContext3D::Attributes& attributes) {
-  return WrapContext(CreateOffscreenContext(attributes)).release();
+  return WrapContextWithAttributes(CreateOffscreenContext(attributes),
+                                   attributes).release();
 }
 
 void SynchronousCompositorFactoryImpl::CompositorInitializedHardwareDraw() {