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

cc/test/fake_context_provider.cc

+// Copyright 2013 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 "cc/test/fake_context_provider.h"
+
+#include "cc/test/test_web_graphics_context_3d.h"
+
+namespace cc {
+
+FakeContextProvider::FakeContextProvider()
+    : destroyed_(false) {
+}
+
+FakeContextProvider::FakeContextProvider(
+    const CreateCallback& create_callback)
+    : create_callback_(create_callback),
+      destroyed_(false) {
+}
+
+FakeContextProvider::~FakeContextProvider() {}
+
+bool FakeContextProvider::InitializeOnMainThread() {
+  if (destroyed_)
+    return false;
+  if (context3d_)
+    return true;
+
+  if (create_callback_.is_null())
+    context3d_ = TestWebGraphicsContext3D::Create().Pass();
+  else
+    context3d_ = create_callback_.Run();
+  destroyed_ = !context3d_;
+  return !!context3d_;
+}
+
+bool FakeContextProvider::BindToCurrentThread() {
+  if (!destroyed_ && !context3d_->makeContextCurrent())
+    destroyed_ = true;
+  return !destroyed_;
+}
+
+WebKit::WebGraphicsContext3D* FakeContextProvider::Context3d() {
+  return context3d_.get();
+}
+class GrContext* FakeContextProvider::GrContext() {
+  // TODO(danakj): Make a fake GrContext.
+  return NULL;
+}
+
+void FakeContextProvider::VerifyContexts() {
+  if (!Context3d() || Context3d()->isContextLost())
+    destroyed_ = true;
+}
+
+}  // namespace cc