Implement the Platform::sharedOffscreenGraphicsContext3D method.

webkit/support/test_webkit_platform_support.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 "webkit/support/test_webkit_platform_support.h"
 
 #include "base/command_line.h"
 #include "base/file_util.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/metrics/stats_counters.h"
 #include "base/path_service.h"
 #include "base/string_util.h"
 #include "base/utf_string_conversions.h"
+#include "cc/context_provider.h"
 #include "cc/thread_impl.h"
 #include "media/base/media.h"
 #include "net/cookies/cookie_monster.h"
 #include "net/http/http_cache.h"
 #include "net/test/test_server.h"
 #include "third_party/WebKit/Source/Platform/chromium/public/WebAudioDevice.h"
 #include "third_party/WebKit/Source/Platform/chromium/public/WebData.h"
 #include "third_party/WebKit/Source/Platform/chromium/public/WebFileSystem.h"
 #include "third_party/WebKit/Source/Platform/chromium/public/WebGamepads.h"
 #include "third_party/WebKit/Source/Platform/chromium/public/WebStorageArea.h"
 #include "third_party/WebKit/Source/Platform/chromium/public/WebString.h"
 #include "third_party/WebKit/Source/Platform/chromium/public/WebURL.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebDatabase.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebKit.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebRuntimeFeatures.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebScriptController.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebSecurityPolicy.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebStorageEventDispatcher.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebStorageNamespace.h"
 #include "third_party/hyphen/hyphen.h"
 #include "v8/include/v8.h"
 #include "webkit/appcache/web_application_cache_host_impl.h"
 #include "webkit/compositor_bindings/web_compositor_support_impl.h"
 #include "webkit/compositor_bindings/web_layer_tree_view_impl_for_testing.h"
 #include "webkit/database/vfs_backend.h"
 #include "webkit/glue/simple_webmimeregistry_impl.h"
 #include "webkit/glue/webclipboard_impl.h"
 #include "webkit/glue/webkit_glue.h"
 #include "webkit/glue/webkitplatformsupport_impl.h"
+#include "webkit/gpu/test_context_provider_factory.h"
 #include "webkit/gpu/webgraphicscontext3d_in_process_command_buffer_impl.h"
 #include "webkit/gpu/webgraphicscontext3d_in_process_impl.h"
 #include "webkit/plugins/npapi/plugin_list.h"
 #include "webkit/support/gc_extension.h"
 #include "webkit/support/simple_database_system.h"
 #include "webkit/support/test_webmessageportchannel.h"
 #include "webkit/support/web_audio_device_mock.h"
 #include "webkit/support/web_gesture_curve_mock.h"
 #include "webkit/support/webkit_support.h"
 #include "webkit/support/weburl_loader_mock_factory.h"
@@ skipping 13 matching lines @@
 #include "base/mac/mac_util.h"
 #endif
 
 using WebKit::WebLayerTreeViewImplForTesting;
 using WebKit::WebScriptController;
 
 TestWebKitPlatformSupport::TestWebKitPlatformSupport(bool unit_test_mode,
     WebKit::Platform* shadow_platform_delegate)
     : unit_test_mode_(unit_test_mode),
       shadow_platform_delegate_(shadow_platform_delegate),
-      hyphen_dictionary_(NULL) {
+      hyphen_dictionary_(NULL),
+      context_provider_factory_(NULL) {
   v8::V8::SetCounterFunction(base::StatsTable::FindLocation);
 
   WebKit::initialize(this);
   WebKit::setLayoutTestMode(true);
   WebKit::WebSecurityPolicy::registerURLSchemeAsLocal(
       WebKit::WebString::fromUTF8("test-shell-resource"));
   WebKit::WebSecurityPolicy::registerURLSchemeAsNoAccess(
       WebKit::WebString::fromUTF8("test-shell-resource"));
   WebKit::WebSecurityPolicy::registerURLSchemeAsDisplayIsolated(
       WebKit::WebString::fromUTF8("test-shell-resource"));
@@ skipping 63 matching lines @@
 
   // Test shell always exposes the GC.
   webkit_glue::SetJavaScriptFlags(" --expose-gc");
   // Expose GCController to JavaScript.
   WebScriptController::registerExtension(extensions_v8::GCExtension::Get());
 }
 
 TestWebKitPlatformSupport::~TestWebKitPlatformSupport() {
   if (hyphen_dictionary_)
     hnj_hyphen_free(hyphen_dictionary_);
+  if (context_provider_factory_)
+    webkit::gpu::TestContextProviderFactory::DestroyInstance();
 }
 
 WebKit::WebMimeRegistry* TestWebKitPlatformSupport::mimeRegistry() {
   return &mime_registry_;
 }
 
 WebKit::WebClipboard* TestWebKitPlatformSupport::clipboard() {
   // Mock out clipboard calls so that tests don't mess
   // with each other's copies/pastes when running in parallel.
   return &mock_clipboard_;
@@ skipping 200 matching lines @@
               webkit::gpu::WebGraphicsContext3DInProcessCommandBufferImpl());
       if (!context->Initialize(attributes, NULL))
         return NULL;
       return context.release();
     }
   }
   NOTREACHED();
   return NULL;
 }
 
+WebKit::WebGraphicsContext3D*
+TestWebKitPlatformSupport::sharedOffscreenGraphicsContext3D() {
+  if (!context_provider_factory_) {
+    context_provider_factory_ =
+        webkit::gpu::TestContextProviderFactory::GetInstance();
+  }
+
+  main_thread_contexts_ =
+      context_provider_factory_->OffscreenContextProviderForMainThread();
+  if (!main_thread_contexts_->InitializeOnMainThread())
+    return NULL;
+  if (!main_thread_contexts_->BindToCurrentThread())
+    return NULL;
+  return main_thread_contexts_->Context3d();
+}
+
+GrContext* TestWebKitPlatformSupport::sharedOffscreenGrContext() {
+  if (!main_thread_contexts_)
+    return NULL;
+  return main_thread_contexts_->GrContext();
+}
+
 bool TestWebKitPlatformSupport::canAccelerate2dCanvas() {
   // We supply an OS-MESA based context for accelarated 2d
   // canvas, which should always work.
   return true;
 }
 
 double TestWebKitPlatformSupport::audioHardwareSampleRate() {
   return 44100.0;
 }
 
@@ skipping 215 matching lines @@
   return view.release();
 }
 
 WebKit::WebLayerTreeView*
     TestWebKitPlatformSupport::createLayerTreeViewForTesting(
         TestViewType type) {
   DCHECK_EQ(TestViewTypeUnitTest, type);
   return createLayerTreeViewForTesting();
 }