Add WebKitPlatformSupport::createOffscreenGraphicsContext3D

content/renderer/renderer_webkitplatformsupport_impl.cc

 // Copyright (c) 2012 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.
 
 #include "content/renderer/renderer_webkitplatformsupport_impl.h"
 
 #include "base/command_line.h"
 #include "base/file_path.h"
 #include "base/file_util.h"
 #include "base/platform_file.h"
@@ skipping 563 matching lines @@
         gfx::kNullPluginWindow, NULL);
   } else {
 #if defined(ENABLE_GPU)
     return new WebGraphicsContext3DCommandBufferImpl();
 #else
     return NULL;
 #endif
   }
 }
 
+WebKit::WebGraphicsContext3D*
+RendererWebKitPlatformSupportImpl::createOffscreenGraphicsContext3D(
+    const WebGraphicsContext3D::Attributes& attributes) {
+  // The WebGraphicsContext3DInProcessImpl code path is used for
+  // layout tests (though not through this code) as well as for
+  // debugging and bringing up new ports.
+  scoped_ptr<WebGraphicsContext3D> context;
+  if (CommandLine::ForCurrentProcess()->HasSwitch(switches::kInProcessWebGL)) {
+    context.reset(new webkit::gpu::WebGraphicsContext3DInProcessImpl(
+        gfx::kNullPluginWindow, NULL));
+  } else {
+#if defined(ENABLE_GPU)
+    context.reset(new WebGraphicsContext3DCommandBufferImpl());
+#else
+    return NULL;
+#endif
+  }
+  if (!context->initialize(attributes, NULL, false))
+    return NULL;
+  return context.release();
+}
+
 double RendererWebKitPlatformSupportImpl::audioHardwareSampleRate() {
   return audio_hardware::GetOutputSampleRate();
 }
 
 size_t RendererWebKitPlatformSupportImpl::audioHardwareBufferSize() {
   return audio_hardware::GetOutputBufferSize();
 }
 
 WebAudioDevice*
 RendererWebKitPlatformSupportImpl::createAudioDevice(
@@ skipping 60 matching lines @@
 RendererWebKitPlatformSupportImpl::createPeerConnectionHandler(
     WebKit::WebPeerConnectionHandlerClient* client) {
   WebFrame* web_frame = WebFrame::frameForCurrentContext();
   if (!web_frame)
     return NULL;
   RenderViewImpl* render_view = RenderViewImpl::FromWebView(web_frame->view());
   if (!render_view)
     return NULL;
   return render_view->CreatePeerConnectionHandler(client);
 }