Defer compositor context creation to the thread.

cc/output/output_surface_unittest.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/output/output_surface.h"
 
 #include "base/memory/ptr_util.h"
 #include "base/test/test_simple_task_runner.h"
 #include "cc/output/managed_memory_policy.h"
 #include "cc/output/output_surface_client.h"
 #include "cc/output/software_output_device.h"
 #include "cc/test/begin_frame_args_test.h"
 #include "cc/test/fake_output_surface.h"
 #include "cc/test/fake_output_surface_client.h"
 #include "cc/test/test_context_provider.h"
 #include "cc/test/test_web_graphics_context_3d.h"
 #include "gpu/GLES2/gl2extchromium.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace cc {
 namespace {
 
 class TestOutputSurface : public OutputSurface {
  public:
-  explicit TestOutputSurface(scoped_refptr<ContextProvider> context_provider)
-      : OutputSurface(context_provider) {}
+  explicit TestOutputSurface(
+      std::unique_ptr<ContextProvider::DeferredCreate> context_provider_create)
+      : OutputSurface(std::move(context_provider_create)) {}
 
-  TestOutputSurface(scoped_refptr<ContextProvider> context_provider,
-                    scoped_refptr<ContextProvider> worker_context_provider)
-      : OutputSurface(worker_context_provider) {}
+  TestOutputSurface(
+      std::unique_ptr<ContextProvider::DeferredCreate> context_provider_create,
+      scoped_refptr<ContextProvider> worker_context_provider)
+      : OutputSurface(std::move(context_provider_create),
+                      std::move(worker_context_provider)) {}
 
   explicit TestOutputSurface(
       std::unique_ptr<SoftwareOutputDevice> software_device)
       : OutputSurface(std::move(software_device)) {}
 
-  TestOutputSurface(scoped_refptr<ContextProvider> context_provider,
-                    std::unique_ptr<SoftwareOutputDevice> software_device)
-      : OutputSurface(context_provider, std::move(software_device)) {}
+  TestOutputSurface(
+      std::unique_ptr<ContextProvider::DeferredCreate> context_provider_create,
+      std::unique_ptr<SoftwareOutputDevice> software_device)
+      : OutputSurface(std::move(context_provider_create),
+                      std::move(software_device)) {}
 
   void SwapBuffers(CompositorFrame* frame) override {
     client_->DidSwapBuffers();
     client_->DidSwapBuffersComplete();
   }
 
   void DidSwapBuffersForTesting() { client_->DidSwapBuffers(); }
 
   void OnSwapBuffersCompleteForTesting() { client_->DidSwapBuffersComplete(); }
 
@@ skipping 26 matching lines @@
   SoftwareOutputDevice::DiscardBackbuffer();
   discard_backbuffer_count_++;
 }
 
 void TestSoftwareOutputDevice::EnsureBackbuffer() {
   SoftwareOutputDevice::EnsureBackbuffer();
   ensure_backbuffer_count_++;
 }
 
 TEST(OutputSurfaceTest, ClientPointerIndicatesBindToClientSuccess) {
-  scoped_refptr<TestContextProvider> provider = TestContextProvider::Create();
-  TestOutputSurface output_surface(provider);
+  TestOutputSurface output_surface(
+      base::MakeUnique<TestContextProvider::DeferredCreate>());
   EXPECT_FALSE(output_surface.HasClient());
 
   FakeOutputSurfaceClient client;
   EXPECT_TRUE(output_surface.BindToClient(&client));
   EXPECT_TRUE(output_surface.HasClient());
 
   // Verify DidLoseOutputSurface callback is hooked up correctly.
   EXPECT_FALSE(client.did_lose_output_surface_called());
   output_surface.context_provider()->ContextGL()->LoseContextCHROMIUM(
       GL_GUILTY_CONTEXT_RESET_ARB, GL_INNOCENT_CONTEXT_RESET_ARB);
   output_surface.context_provider()->ContextGL()->Flush();
   EXPECT_TRUE(client.did_lose_output_surface_called());
 }
 
 TEST(OutputSurfaceTest, ClientPointerIndicatesWorkerBindToClientSuccess) {
-  scoped_refptr<TestContextProvider> provider = TestContextProvider::Create();
-  scoped_refptr<TestContextProvider> worker_provider =
-      TestContextProvider::Create();
-  TestOutputSurface output_surface(provider, worker_provider);
+  TestOutputSurface output_surface(
+      base::MakeUnique<TestContextProvider::DeferredCreate>(),
+      TestContextProvider::Create());
   EXPECT_FALSE(output_surface.HasClient());
 
   FakeOutputSurfaceClient client;
   EXPECT_TRUE(output_surface.BindToClient(&client));
   EXPECT_TRUE(output_surface.HasClient());
 
   // Verify DidLoseOutputSurface callback is hooked up correctly.
   EXPECT_FALSE(client.did_lose_output_surface_called());
   output_surface.context_provider()->ContextGL()->LoseContextCHROMIUM(
       GL_GUILTY_CONTEXT_RESET_ARB, GL_INNOCENT_CONTEXT_RESET_ARB);
   output_surface.context_provider()->ContextGL()->Flush();
   EXPECT_TRUE(client.did_lose_output_surface_called());
 }
 
 TEST(OutputSurfaceTest, ClientPointerIndicatesBindToClientFailure) {
-  scoped_refptr<TestContextProvider> context_provider =
-      TestContextProvider::Create();
+  std::unique_ptr<TestContextProvider::DeferredCreate> compositor_create(
+      new TestContextProvider::DeferredCreate);
+  compositor_create->fail_create = true;
 
-  // Lose the context so BindToClient fails.
-  context_provider->UnboundTestContext3d()->set_context_lost(true);
-
-  TestOutputSurface output_surface(context_provider);
+  TestOutputSurface output_surface(std::move(compositor_create));
   EXPECT_FALSE(output_surface.HasClient());
 
   FakeOutputSurfaceClient client;
   EXPECT_FALSE(output_surface.BindToClient(&client));
   EXPECT_FALSE(output_surface.HasClient());
 }
 
 TEST(OutputSurfaceTest, ClientPointerIndicatesWorkerBindToClientFailure) {
-  scoped_refptr<TestContextProvider> context_provider =
-      TestContextProvider::Create();
+  std::unique_ptr<TestContextProvider::DeferredCreate> compositor_create(
+      new TestContextProvider::DeferredCreate);
   scoped_refptr<TestContextProvider> worker_context_provider =
       TestContextProvider::Create();
 
   // Lose the context so BindToClient fails.
-  worker_context_provider->UnboundTestContext3d()->set_context_lost(true);
+  worker_context_provider->TestContext3d()->set_context_lost(true);
 
-  TestOutputSurface output_surface(context_provider, worker_context_provider);
+  TestOutputSurface output_surface(std::move(compositor_create),
+                                   worker_context_provider);
   EXPECT_FALSE(output_surface.HasClient());
 
   FakeOutputSurfaceClient client;
   EXPECT_FALSE(output_surface.BindToClient(&client));
   EXPECT_FALSE(output_surface.HasClient());
 }
 
 TEST(OutputSurfaceTest, SoftwareOutputDeviceBackbufferManagement) {
   TestSoftwareOutputDevice* software_output_device =
       new TestSoftwareOutputDevice();
 
   // TestOutputSurface now owns software_output_device and has responsibility to
   // free it.
   TestOutputSurface output_surface(base::WrapUnique(software_output_device));
 
   EXPECT_EQ(0, software_output_device->ensure_backbuffer_count());
   EXPECT_EQ(0, software_output_device->discard_backbuffer_count());
 
   output_surface.EnsureBackbuffer();
   EXPECT_EQ(1, software_output_device->ensure_backbuffer_count());
   EXPECT_EQ(0, software_output_device->discard_backbuffer_count());
   output_surface.DiscardBackbuffer();
 
   EXPECT_EQ(1, software_output_device->ensure_backbuffer_count());
   EXPECT_EQ(1, software_output_device->discard_backbuffer_count());
 }
 
 }  // namespace
 }  // namespace cc