Revert "Delete CC."

cc/output/output_surface_unittest.cc

Index: cc/output/output_surface_unittest.cc
diff --git a/cc/output/output_surface_unittest.cc b/cc/output/output_surface_unittest.cc
new file mode 100644
index 0000000000000000000000000000000000000000..f32a96f21839917e8fe7d664b7ed353891865a1d
--- /dev/null
+++ b/cc/output/output_surface_unittest.cc
@@ -0,0 +1,268 @@
+// 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/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"
+#include "ui/gfx/frame_time.h"
+
+namespace cc {
+namespace {
+
+class TestOutputSurface : public OutputSurface {
+ public:
+  explicit TestOutputSurface(scoped_refptr<ContextProvider> context_provider)
+      : OutputSurface(context_provider) {}
+
+  TestOutputSurface(scoped_refptr<ContextProvider> context_provider,
+                    scoped_refptr<ContextProvider> worker_context_provider)
+      : OutputSurface(worker_context_provider) {}
+
+  explicit TestOutputSurface(scoped_ptr<SoftwareOutputDevice> software_device)
+      : OutputSurface(software_device.Pass()) {}
+
+  TestOutputSurface(scoped_refptr<ContextProvider> context_provider,
+                    scoped_ptr<SoftwareOutputDevice> software_device)
+      : OutputSurface(context_provider, software_device.Pass()) {}
+
+  void SwapBuffers(CompositorFrame* frame) override {
+    client_->DidSwapBuffers();
+    client_->DidSwapBuffersComplete();
+  }
+
+  bool InitializeNewContext3d(scoped_refptr<ContextProvider> context_provider) {
+    return InitializeAndSetContext3d(context_provider, nullptr);
+  }
+
+  using OutputSurface::ReleaseGL;
+
+  void CommitVSyncParametersForTesting(base::TimeTicks timebase,
+                                       base::TimeDelta interval) {
+    CommitVSyncParameters(timebase, interval);
+  }
+
+  void DidSwapBuffersForTesting() { client_->DidSwapBuffers(); }
+
+  void OnSwapBuffersCompleteForTesting() { client_->DidSwapBuffersComplete(); }
+
+ protected:
+};
+
+class TestSoftwareOutputDevice : public SoftwareOutputDevice {
+ public:
+  TestSoftwareOutputDevice();
+  ~TestSoftwareOutputDevice() override;
+
+  // Overriden from cc:SoftwareOutputDevice
+  void DiscardBackbuffer() override;
+  void EnsureBackbuffer() override;
+
+  int discard_backbuffer_count() { return discard_backbuffer_count_; }
+  int ensure_backbuffer_count() { return ensure_backbuffer_count_; }
+
+ private:
+  int discard_backbuffer_count_;
+  int ensure_backbuffer_count_;
+};
+
+TestSoftwareOutputDevice::TestSoftwareOutputDevice()
+    : discard_backbuffer_count_(0), ensure_backbuffer_count_(0) {}
+
+TestSoftwareOutputDevice::~TestSoftwareOutputDevice() {}
+
+void TestSoftwareOutputDevice::DiscardBackbuffer() {
+  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);
+  EXPECT_FALSE(output_surface.HasClient());
+
+  FakeOutputSurfaceClient client;
+  EXPECT_TRUE(output_surface.BindToClient(&client));
+  EXPECT_TRUE(output_surface.HasClient());
+  EXPECT_FALSE(client.deferred_initialize_called());
+
+  // 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);
+  EXPECT_FALSE(output_surface.HasClient());
+
+  FakeOutputSurfaceClient client;
+  EXPECT_TRUE(output_surface.BindToClient(&client));
+  EXPECT_TRUE(output_surface.HasClient());
+  EXPECT_FALSE(client.deferred_initialize_called());
+
+  // 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();
+
+  // Lose the context so BindToClient fails.
+  context_provider->UnboundTestContext3d()->set_context_lost(true);
+
+  TestOutputSurface output_surface(context_provider);
+  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();
+  scoped_refptr<TestContextProvider> worker_context_provider =
+      TestContextProvider::Create();
+
+  // Lose the context so BindToClient fails.
+  worker_context_provider->UnboundTestContext3d()->set_context_lost(true);
+
+  TestOutputSurface output_surface(context_provider, worker_context_provider);
+  EXPECT_FALSE(output_surface.HasClient());
+
+  FakeOutputSurfaceClient client;
+  EXPECT_FALSE(output_surface.BindToClient(&client));
+  EXPECT_FALSE(output_surface.HasClient());
+}
+
+class OutputSurfaceTestInitializeNewContext3d : public ::testing::Test {
+ public:
+  OutputSurfaceTestInitializeNewContext3d()
+      : context_provider_(TestContextProvider::Create()),
+        output_surface_(
+            scoped_ptr<SoftwareOutputDevice>(new SoftwareOutputDevice)),
+        client_(&output_surface_) {}
+
+ protected:
+  void BindOutputSurface() {
+    EXPECT_TRUE(output_surface_.BindToClient(&client_));
+    EXPECT_TRUE(output_surface_.HasClient());
+  }
+
+  void InitializeNewContextExpectFail() {
+    EXPECT_FALSE(output_surface_.InitializeNewContext3d(context_provider_));
+    EXPECT_TRUE(output_surface_.HasClient());
+
+    EXPECT_FALSE(output_surface_.context_provider());
+    EXPECT_TRUE(output_surface_.software_device());
+  }
+
+  scoped_refptr<TestContextProvider> context_provider_;
+  TestOutputSurface output_surface_;
+  FakeOutputSurfaceClient client_;
+};
+
+TEST_F(OutputSurfaceTestInitializeNewContext3d, Success) {
+  BindOutputSurface();
+  EXPECT_FALSE(client_.deferred_initialize_called());
+
+  EXPECT_TRUE(output_surface_.InitializeNewContext3d(context_provider_));
+  EXPECT_TRUE(client_.deferred_initialize_called());
+  EXPECT_EQ(context_provider_.get(), output_surface_.context_provider());
+
+  EXPECT_FALSE(client_.did_lose_output_surface_called());
+  context_provider_->ContextGL()->LoseContextCHROMIUM(
+      GL_GUILTY_CONTEXT_RESET_ARB, GL_INNOCENT_CONTEXT_RESET_ARB);
+  context_provider_->ContextGL()->Flush();
+  EXPECT_TRUE(client_.did_lose_output_surface_called());
+
+  output_surface_.ReleaseGL();
+  EXPECT_FALSE(output_surface_.context_provider());
+}
+
+TEST_F(OutputSurfaceTestInitializeNewContext3d, Context3dMakeCurrentFails) {
+  BindOutputSurface();
+
+  context_provider_->UnboundTestContext3d()->set_context_lost(true);
+  InitializeNewContextExpectFail();
+}
+
+TEST(OutputSurfaceTest, MemoryAllocation) {
+  scoped_refptr<TestContextProvider> context_provider =
+      TestContextProvider::Create();
+
+  TestOutputSurface output_surface(context_provider);
+
+  FakeOutputSurfaceClient client;
+  EXPECT_TRUE(output_surface.BindToClient(&client));
+
+  ManagedMemoryPolicy policy(0);
+  policy.bytes_limit_when_visible = 1234;
+  policy.priority_cutoff_when_visible =
+      gpu::MemoryAllocation::CUTOFF_ALLOW_REQUIRED_ONLY;
+
+  context_provider->SetMemoryAllocation(policy);
+  EXPECT_EQ(1234u, client.memory_policy().bytes_limit_when_visible);
+  EXPECT_EQ(gpu::MemoryAllocation::CUTOFF_ALLOW_REQUIRED_ONLY,
+            client.memory_policy().priority_cutoff_when_visible);
+
+  policy.priority_cutoff_when_visible =
+      gpu::MemoryAllocation::CUTOFF_ALLOW_EVERYTHING;
+  context_provider->SetMemoryAllocation(policy);
+  EXPECT_EQ(gpu::MemoryAllocation::CUTOFF_ALLOW_EVERYTHING,
+            client.memory_policy().priority_cutoff_when_visible);
+
+  // 0 bytes limit should be ignored.
+  policy.bytes_limit_when_visible = 0;
+  context_provider->SetMemoryAllocation(policy);
+  EXPECT_EQ(1234u, client.memory_policy().bytes_limit_when_visible);
+}
+
+TEST(OutputSurfaceTest, SoftwareOutputDeviceBackbufferManagement) {
+  TestSoftwareOutputDevice* software_output_device =
+      new TestSoftwareOutputDevice();
+
+  // TestOutputSurface now owns software_output_device and has responsibility to
+  // free it.
+  TestOutputSurface output_surface(make_scoped_ptr(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