Revert 212008 "cc: Remove TextureLayer::SetTextureId and Texture..."

trunk/src/cc/layers/texture_layer_unittest.cc

 // Copyright 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 "cc/layers/texture_layer.h"
 
 #include <string>
 
 #include "base/callback.h"
-#include "base/run_loop.h"
 #include "cc/layers/texture_layer_client.h"
 #include "cc/layers/texture_layer_impl.h"
 #include "cc/test/fake_impl_proxy.h"
 #include "cc/test/fake_layer_tree_host_client.h"
 #include "cc/test/fake_layer_tree_host_impl.h"
 #include "cc/test/layer_test_common.h"
 #include "cc/test/layer_tree_test.h"
 #include "cc/trees/layer_tree_host.h"
 #include "cc/trees/layer_tree_impl.h"
 #include "cc/trees/single_thread_proxy.h"
 #include "gpu/GLES2/gl2extchromium.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using ::testing::Mock;
 using ::testing::_;
 using ::testing::AtLeast;
 using ::testing::AnyNumber;
-using ::testing::InvokeWithoutArgs;
 
 namespace cc {
 namespace {
 
 class MockLayerTreeHost : public LayerTreeHost {
  public:
   explicit MockLayerTreeHost(LayerTreeHostClient* client)
       : LayerTreeHost(client, LayerTreeSettings()) {
     Initialize(NULL);
   }
 
   MOCK_METHOD0(AcquireLayerTextures, void());
   MOCK_METHOD0(SetNeedsCommit, void());
   MOCK_METHOD1(StartRateLimiter, void(WebKit::WebGraphicsContext3D* context));
   MOCK_METHOD1(StopRateLimiter, void(WebKit::WebGraphicsContext3D* context));
 };
 
-class FakeTextureLayerClient : public TextureLayerClient {
- public:
-  FakeTextureLayerClient()
-      : context_(TestWebGraphicsContext3D::Create()),
-        texture_(0),
-        mailbox_changed_(true) {}
-
-  virtual unsigned PrepareTexture() OVERRIDE {
-    return texture_;
-  }
-
-  virtual WebKit::WebGraphicsContext3D* Context3d() OVERRIDE {
-    return context_.get();
-  }
-
-  virtual bool PrepareTextureMailbox(TextureMailbox* mailbox,
-                                     bool use_shared_memory) OVERRIDE {
-    if (!mailbox_changed_)
-      return false;
-
-    *mailbox = mailbox_;
-    mailbox_changed_ = false;
-    return true;
-  }
-
-  void set_texture(unsigned texture) {
-    texture_ = texture;
-  }
-
-  void set_mailbox(const TextureMailbox& mailbox) {
-    mailbox_ = mailbox;
-    mailbox_changed_ = true;
-  }
-
- private:
-  scoped_ptr<TestWebGraphicsContext3D> context_;
-  unsigned texture_;
-  TextureMailbox mailbox_;
-  bool mailbox_changed_;
-  DISALLOW_COPY_AND_ASSIGN(FakeTextureLayerClient);
-};
-
-class MockMailboxCallback {
- public:
-  MOCK_METHOD3(Release, void(const std::string& mailbox,
-                             unsigned sync_point,
-                             bool lost_resource));
-  MOCK_METHOD3(Release2, void(base::SharedMemory* shared_memory,
-                              unsigned sync_point,
-                              bool lost_resource));
-};
-
-struct CommonMailboxObjects {
-  CommonMailboxObjects()
-      : mailbox_name1_(64, '1'),
-        mailbox_name2_(64, '2'),
-        sync_point1_(1),
-        sync_point2_(2),
-        shared_memory_(new base::SharedMemory) {
-    release_mailbox1_ = base::Bind(&MockMailboxCallback::Release,
-                                   base::Unretained(&mock_callback_),
-                                   mailbox_name1_);
-    release_mailbox2_ = base::Bind(&MockMailboxCallback::Release,
-                                   base::Unretained(&mock_callback_),
-                                   mailbox_name2_);
-    gpu::Mailbox m1;
-    m1.SetName(reinterpret_cast<const int8*>(mailbox_name1_.data()));
-    mailbox1_ = TextureMailbox(m1, release_mailbox1_, sync_point1_);
-    gpu::Mailbox m2;
-    m2.SetName(reinterpret_cast<const int8*>(mailbox_name2_.data()));
-    mailbox2_ = TextureMailbox(m2, release_mailbox2_, sync_point2_);
-
-    gfx::Size size(128, 128);
-    EXPECT_TRUE(shared_memory_->CreateAndMapAnonymous(4 * size.GetArea()));
-    release_mailbox3_ = base::Bind(&MockMailboxCallback::Release2,
-                                   base::Unretained(&mock_callback_),
-                                   shared_memory_.get());
-    mailbox3_ = TextureMailbox(shared_memory_.get(), size, release_mailbox3_);
-  }
-
-  std::string mailbox_name1_;
-  std::string mailbox_name2_;
-  MockMailboxCallback mock_callback_;
-  TextureMailbox::ReleaseCallback release_mailbox1_;
-  TextureMailbox::ReleaseCallback release_mailbox2_;
-  TextureMailbox::ReleaseCallback release_mailbox3_;
-  TextureMailbox mailbox1_;
-  TextureMailbox mailbox2_;
-  TextureMailbox mailbox3_;
-  unsigned sync_point1_;
-  unsigned sync_point2_;
-  scoped_ptr<base::SharedMemory> shared_memory_;
-};
-
 class TextureLayerTest : public testing::Test {
  public:
   TextureLayerTest()
       : fake_client_(
           FakeLayerTreeHostClient(FakeLayerTreeHostClient::DIRECT_3D)),
         host_impl_(&proxy_) {}
 
  protected:
   virtual void SetUp() {
     layer_tree_host_.reset(new MockLayerTreeHost(&fake_client_));
-    EXPECT_CALL(*layer_tree_host_, SetNeedsCommit()).Times(AnyNumber());
-    layer_tree_host_->SetViewportSize(gfx::Size(10, 10));
-    Mock::VerifyAndClearExpectations(layer_tree_host_.get());
-}
+  }
 
   virtual void TearDown() {
     Mock::VerifyAndClearExpectations(layer_tree_host_.get());
     EXPECT_CALL(*layer_tree_host_, AcquireLayerTextures()).Times(AnyNumber());
     EXPECT_CALL(*layer_tree_host_, SetNeedsCommit()).Times(AnyNumber());
 
     layer_tree_host_->SetRootLayer(NULL);
     layer_tree_host_.reset();
   }
 
   scoped_ptr<MockLayerTreeHost> layer_tree_host_;
   FakeImplProxy proxy_;
   FakeLayerTreeHostClient fake_client_;
   FakeLayerTreeHostImpl host_impl_;
 };
 
-TEST_F(TextureLayerTest, SyncImplWhenClearingTexture) {
-  FakeTextureLayerClient client;
-  scoped_refptr<TextureLayer> test_layer = TextureLayer::Create(&client);
+TEST_F(TextureLayerTest, SyncImplWhenChangingTextureId) {
+  scoped_refptr<TextureLayer> test_layer = TextureLayer::Create(NULL);
   ASSERT_TRUE(test_layer.get());
-  test_layer->SetIsDrawable(true);
-  test_layer->SetBounds(gfx::Size(10, 10));
 
-  EXPECT_CALL(*layer_tree_host_, AcquireLayerTextures()).Times(0);
+  EXPECT_CALL(*layer_tree_host_, AcquireLayerTextures()).Times(AnyNumber());
   EXPECT_CALL(*layer_tree_host_, SetNeedsCommit()).Times(AnyNumber());
   layer_tree_host_->SetRootLayer(test_layer);
   Mock::VerifyAndClearExpectations(layer_tree_host_.get());
   EXPECT_EQ(test_layer->layer_tree_host(), layer_tree_host_.get());
 
-  // Clearing the texture before we gave one should not sync.
   EXPECT_CALL(*layer_tree_host_, AcquireLayerTextures()).Times(0);
-  EXPECT_CALL(*layer_tree_host_, SetNeedsCommit()).Times(AnyNumber());
-  test_layer->ClearTexture();
+  EXPECT_CALL(*layer_tree_host_, SetNeedsCommit()).Times(AtLeast(1));
+  test_layer->SetTextureId(1);
   Mock::VerifyAndClearExpectations(layer_tree_host_.get());
 
-  // Give a texture to the layer through the client.
-  EXPECT_CALL(*layer_tree_host_, AcquireLayerTextures()).Times(0);
+  EXPECT_CALL(*layer_tree_host_, AcquireLayerTextures()).Times(AtLeast(1));
   EXPECT_CALL(*layer_tree_host_, SetNeedsCommit()).Times(AtLeast(1));
-  client.set_texture(client.Context3d()->createTexture());
-  test_layer->SetNeedsDisplay();
-  // Force a commit.
-  layer_tree_host_->Composite(base::TimeTicks());
+  test_layer->SetTextureId(2);
   Mock::VerifyAndClearExpectations(layer_tree_host_.get());
 
-  // Clearing the texture should sync.
   EXPECT_CALL(*layer_tree_host_, AcquireLayerTextures()).Times(AtLeast(1));
   EXPECT_CALL(*layer_tree_host_, SetNeedsCommit()).Times(AtLeast(1));
-  test_layer->ClearTexture();
-  Mock::VerifyAndClearExpectations(layer_tree_host_.get());
-
-  // But only once.
-  EXPECT_CALL(*layer_tree_host_, AcquireLayerTextures()).Times(0);
-  EXPECT_CALL(*layer_tree_host_, SetNeedsCommit()).Times(AnyNumber());
-  test_layer->ClearTexture();
-  Mock::VerifyAndClearExpectations(layer_tree_host_.get());
-
-  // Force a commit to give another texture.
-  EXPECT_CALL(*layer_tree_host_, SetNeedsCommit()).Times(AtLeast(1));
-  test_layer->SetNeedsDisplay();
-  layer_tree_host_->Composite(base::TimeTicks());
-  Mock::VerifyAndClearExpectations(layer_tree_host_.get());
-
-  // Make undrawable and commit.
-  EXPECT_CALL(*layer_tree_host_, SetNeedsCommit()).Times(AtLeast(1));
-  test_layer->SetIsDrawable(false);
-  layer_tree_host_->Composite(base::TimeTicks());
-  Mock::VerifyAndClearExpectations(layer_tree_host_.get());
-
-  // Clearing textures should not sync.
-  EXPECT_CALL(*layer_tree_host_, AcquireLayerTextures()).Times(0);
-  EXPECT_CALL(*layer_tree_host_, SetNeedsCommit()).Times(AnyNumber());
-  test_layer->ClearTexture();
+  test_layer->SetTextureId(0);
   Mock::VerifyAndClearExpectations(layer_tree_host_.get());
 }
 
-TEST_F(TextureLayerTest, SyncImplWhenClearingMailbox) {
-  CommonMailboxObjects mailboxes;
-  FakeTextureLayerClient client;
-  scoped_refptr<TextureLayer> test_layer =
-      TextureLayer::CreateForMailbox(&client);
+TEST_F(TextureLayerTest, SyncImplWhenDrawing) {
+  gfx::RectF dirty_rect(0.f, 0.f, 1.f, 1.f);
+
+  scoped_refptr<TextureLayer> test_layer = TextureLayer::Create(NULL);
   ASSERT_TRUE(test_layer.get());
-  test_layer->SetIsDrawable(true);
-  test_layer->SetBounds(gfx::Size(10, 10));
-  EXPECT_CALL(*layer_tree_host_, AcquireLayerTextures()).Times(0);
+  scoped_ptr<TextureLayerImpl> impl_layer;
+  impl_layer = TextureLayerImpl::Create(host_impl_.active_tree(), 1, false);
+  ASSERT_TRUE(impl_layer);
+
+  EXPECT_CALL(*layer_tree_host_, AcquireLayerTextures()).Times(AnyNumber());
   EXPECT_CALL(*layer_tree_host_, SetNeedsCommit()).Times(AnyNumber());
   layer_tree_host_->SetRootLayer(test_layer);
+  test_layer->SetTextureId(1);
+  test_layer->SetIsDrawable(true);
   Mock::VerifyAndClearExpectations(layer_tree_host_.get());
   EXPECT_EQ(test_layer->layer_tree_host(), layer_tree_host_.get());
 
-  // Clearing the mailbox before we gave one should not sync.
-  EXPECT_CALL(*layer_tree_host_, AcquireLayerTextures()).Times(0);
-  EXPECT_CALL(*layer_tree_host_, SetNeedsCommit()).Times(AnyNumber());
-  test_layer->ClearTexture();
+  EXPECT_CALL(*layer_tree_host_, AcquireLayerTextures()).Times(1);
+  EXPECT_CALL(*layer_tree_host_, SetNeedsCommit()).Times(0);
+  test_layer->WillModifyTexture();
   Mock::VerifyAndClearExpectations(layer_tree_host_.get());
 
-  // Give a mailbox to the layer through the client.
   EXPECT_CALL(*layer_tree_host_, AcquireLayerTextures()).Times(0);
-  EXPECT_CALL(*layer_tree_host_, SetNeedsCommit()).Times(AtLeast(1));
-  client.set_mailbox(mailboxes.mailbox1_);
-  test_layer->SetNeedsDisplay();
-  // Force a commit.
-  layer_tree_host_->Composite(base::TimeTicks());
+  EXPECT_CALL(*layer_tree_host_, SetNeedsCommit()).Times(1);
+  test_layer->SetNeedsDisplayRect(dirty_rect);
   Mock::VerifyAndClearExpectations(layer_tree_host_.get());
 
-  // Clearing the mailbox should sync.
-  EXPECT_CALL(*layer_tree_host_, AcquireLayerTextures()).Times(AtLeast(1));
-  EXPECT_CALL(*layer_tree_host_, SetNeedsCommit()).Times(AtLeast(1));
-  test_layer->ClearTexture();
+  EXPECT_CALL(*layer_tree_host_, AcquireLayerTextures()).Times(0);
+  EXPECT_CALL(*layer_tree_host_, SetNeedsCommit()).Times(1);
+  test_layer->PushPropertiesTo(impl_layer.get());  // fake commit
+  test_layer->SetIsDrawable(false);
   Mock::VerifyAndClearExpectations(layer_tree_host_.get());
 
-  // But only once.
-  EXPECT_CALL(*layer_tree_host_, AcquireLayerTextures()).Times(0);
-  EXPECT_CALL(*layer_tree_host_, SetNeedsCommit()).Times(AnyNumber());
-  test_layer->ClearTexture();
+  // Verify that non-drawable layers don't signal the compositor,
+  // except for the first draw after last commit, which must acquire
+  // the texture.
+  EXPECT_CALL(*layer_tree_host_, AcquireLayerTextures()).Times(1);
+  EXPECT_CALL(*layer_tree_host_, SetNeedsCommit()).Times(0);
+  test_layer->WillModifyTexture();
+  test_layer->SetNeedsDisplayRect(dirty_rect);
+  test_layer->PushPropertiesTo(impl_layer.get());  // fake commit
   Mock::VerifyAndClearExpectations(layer_tree_host_.get());
 
-  // Force a commit to give another mailbox.
+  // Second draw with layer in non-drawable state: no texture
+  // acquisition.
   EXPECT_CALL(*layer_tree_host_, AcquireLayerTextures()).Times(0);
-  EXPECT_CALL(*layer_tree_host_, SetNeedsCommit()).Times(AtLeast(1));
-  client.set_mailbox(mailboxes.mailbox2_);
-  test_layer->SetNeedsDisplay();
-  // Commit will return mailbox1.
-  layer_tree_host_->Composite(base::TimeTicks());
+  EXPECT_CALL(*layer_tree_host_, SetNeedsCommit()).Times(0);
+  test_layer->WillModifyTexture();
+  test_layer->SetNeedsDisplayRect(dirty_rect);
   Mock::VerifyAndClearExpectations(layer_tree_host_.get());
-
-  // Wait for mailbox callback.
-  {
-    base::RunLoop run_loop;
-    EXPECT_CALL(mailboxes.mock_callback_,
-                Release(mailboxes.mailbox_name1_, _, false))
-        .WillOnce(InvokeWithoutArgs(&run_loop, &base::RunLoop::Quit));
-    run_loop.Run();
-  }
-
-  // Make undrawable and commit.
-  EXPECT_CALL(*layer_tree_host_, SetNeedsCommit()).Times(AtLeast(1));
-  test_layer->SetIsDrawable(false);
-  layer_tree_host_->Composite(base::TimeTicks());
-  Mock::VerifyAndClearExpectations(layer_tree_host_.get());
-
-  // Clearing textures should not sync.
-  EXPECT_CALL(*layer_tree_host_, AcquireLayerTextures()).Times(0);
-  EXPECT_CALL(*layer_tree_host_, SetNeedsCommit()).Times(AnyNumber());
-  test_layer->ClearTexture();
-  Mock::VerifyAndClearExpectations(layer_tree_host_.get());
-
-  // Commit will return the mailbox.
-  layer_tree_host_->Composite(base::TimeTicks());
-  Mock::VerifyAndClearExpectations(layer_tree_host_.get());
-
-  // Wait for mailbox callback.
-  {
-    base::RunLoop run_loop;
-    EXPECT_CALL(mailboxes.mock_callback_,
-                Release(mailboxes.mailbox_name2_, _, false))
-        .WillOnce(InvokeWithoutArgs(&run_loop, &base::RunLoop::Quit));
-    run_loop.Run();
-  }
 }
 
 TEST_F(TextureLayerTest, SyncImplWhenRemovingFromTree) {
   scoped_refptr<Layer> root_layer = Layer::Create();
   ASSERT_TRUE(root_layer.get());
   scoped_refptr<Layer> child_layer = Layer::Create();
   ASSERT_TRUE(child_layer.get());
   root_layer->AddChild(child_layer);
-  FakeTextureLayerClient client;
-  scoped_refptr<TextureLayer> test_layer = TextureLayer::Create(&client);
-  test_layer->SetIsDrawable(true);
-  test_layer->SetBounds(gfx::Size(10, 10));
+  scoped_refptr<TextureLayer> test_layer = TextureLayer::Create(NULL);
   ASSERT_TRUE(test_layer.get());
+  test_layer->SetTextureId(0);
   child_layer->AddChild(test_layer);
 
   EXPECT_CALL(*layer_tree_host_, AcquireLayerTextures()).Times(AnyNumber());
   EXPECT_CALL(*layer_tree_host_, SetNeedsCommit()).Times(AnyNumber());
   layer_tree_host_->SetRootLayer(root_layer);
   Mock::VerifyAndClearExpectations(layer_tree_host_.get());
 
   EXPECT_CALL(*layer_tree_host_, AcquireLayerTextures()).Times(0);
   EXPECT_CALL(*layer_tree_host_, SetNeedsCommit()).Times(AtLeast(1));
   test_layer->RemoveFromParent();
   Mock::VerifyAndClearExpectations(layer_tree_host_.get());
 
   EXPECT_CALL(*layer_tree_host_, AcquireLayerTextures()).Times(0);
   EXPECT_CALL(*layer_tree_host_, SetNeedsCommit()).Times(AtLeast(1));
   child_layer->AddChild(test_layer);
   Mock::VerifyAndClearExpectations(layer_tree_host_.get());
 
-  // Give a texture to the layer through the client.
   EXPECT_CALL(*layer_tree_host_, AcquireLayerTextures()).Times(0);
   EXPECT_CALL(*layer_tree_host_, SetNeedsCommit()).Times(AtLeast(1));
-  client.set_texture(client.Context3d()->createTexture());
-  test_layer->SetNeedsDisplay();
-  // Force a commit.
-  layer_tree_host_->Composite(base::TimeTicks());
+  test_layer->SetTextureId(1);
   Mock::VerifyAndClearExpectations(layer_tree_host_.get());
 
   EXPECT_CALL(*layer_tree_host_, AcquireLayerTextures()).Times(AtLeast(1));
   EXPECT_CALL(*layer_tree_host_, SetNeedsCommit()).Times(AtLeast(1));
   test_layer->RemoveFromParent();
   Mock::VerifyAndClearExpectations(layer_tree_host_.get());
 }
 
 TEST_F(TextureLayerTest, CheckPropertyChangeCausesCorrectBehavior) {
   scoped_refptr<TextureLayer> test_layer = TextureLayer::Create(NULL);
-  EXPECT_SET_NEEDS_COMMIT(1, layer_tree_host_->SetRootLayer(test_layer));
+  layer_tree_host_->SetRootLayer(test_layer);
 
   // Test properties that should call SetNeedsCommit.  All properties need to
   // be set to new values in order for SetNeedsCommit to be called.
   EXPECT_SET_NEEDS_COMMIT(1, test_layer->SetFlipped(false));
   EXPECT_SET_NEEDS_COMMIT(1, test_layer->SetUV(
       gfx::PointF(0.25f, 0.25f), gfx::PointF(0.75f, 0.75f)));
   EXPECT_SET_NEEDS_COMMIT(1, test_layer->SetVertexOpacity(
       0.5f, 0.5f, 0.5f, 0.5f));
   EXPECT_SET_NEEDS_COMMIT(1, test_layer->SetPremultipliedAlpha(false));
   EXPECT_SET_NEEDS_COMMIT(1, test_layer->SetBlendBackgroundColor(true));
-  EXPECT_SET_NEEDS_COMMIT(1, test_layer->ClearTexture());
+  EXPECT_SET_NEEDS_COMMIT(1, test_layer->SetTextureId(1));
+
+  // Calling SetTextureId can call AcquireLayerTextures.
+  EXPECT_CALL(*layer_tree_host_, AcquireLayerTextures()).Times(AnyNumber());
 }
 
+class FakeTextureLayerClient : public TextureLayerClient {
+ public:
+  FakeTextureLayerClient() : context_(TestWebGraphicsContext3D::Create()) {}
+
+  virtual unsigned PrepareTexture() OVERRIDE {
+    return 0;
+  }
+
+  virtual WebKit::WebGraphicsContext3D* Context3d() OVERRIDE {
+    return context_.get();
+  }
+
+  virtual bool PrepareTextureMailbox(TextureMailbox* mailbox,
+                                     bool use_shared_memory) OVERRIDE {
+    *mailbox = TextureMailbox();
+    return true;
+  }
+
+ private:
+  scoped_ptr<TestWebGraphicsContext3D> context_;
+  DISALLOW_COPY_AND_ASSIGN(FakeTextureLayerClient);
+};
+
 TEST_F(TextureLayerTest, RateLimiter) {
   FakeTextureLayerClient client;
   scoped_refptr<TextureLayer> test_layer = TextureLayer::CreateForMailbox(
       &client);
   test_layer->SetIsDrawable(true);
   EXPECT_CALL(*layer_tree_host_, SetNeedsCommit()).Times(AnyNumber());
   layer_tree_host_->SetRootLayer(test_layer);
 
   // Don't rate limit until we invalidate.
   EXPECT_CALL(*layer_tree_host_, StartRateLimiter(_)).Times(0);
@@ skipping 29 matching lines @@
   EXPECT_CALL(*layer_tree_host_, StartRateLimiter(client.Context3d()));
   test_layer->SetNeedsDisplay();
   Mock::VerifyAndClearExpectations(layer_tree_host_.get());
 
   // Stop rate limiter when we're removed from the tree.
   EXPECT_CALL(*layer_tree_host_, StopRateLimiter(client.Context3d()));
   layer_tree_host_->SetRootLayer(NULL);
   Mock::VerifyAndClearExpectations(layer_tree_host_.get());
 }
 
+class MockMailboxCallback {
+ public:
+  MOCK_METHOD3(Release, void(const std::string& mailbox,
+                             unsigned sync_point,
+                             bool lost_resource));
+  MOCK_METHOD3(Release2, void(base::SharedMemory* shared_memory,
+                              unsigned sync_point,
+                              bool lost_resource));
+};
+
+struct CommonMailboxObjects {
+  CommonMailboxObjects()
+      : mailbox_name1_(64, '1'),
+        mailbox_name2_(64, '2'),
+        sync_point1_(1),
+        sync_point2_(2),
+        shared_memory_(new base::SharedMemory) {
+    release_mailbox1_ = base::Bind(&MockMailboxCallback::Release,
+                                   base::Unretained(&mock_callback_),
+                                   mailbox_name1_);
+    release_mailbox2_ = base::Bind(&MockMailboxCallback::Release,
+                                   base::Unretained(&mock_callback_),
+                                   mailbox_name2_);
+    gpu::Mailbox m1;
+    m1.SetName(reinterpret_cast<const int8*>(mailbox_name1_.data()));
+    mailbox1_ = TextureMailbox(m1, release_mailbox1_, sync_point1_);
+    gpu::Mailbox m2;
+    m2.SetName(reinterpret_cast<const int8*>(mailbox_name2_.data()));
+    mailbox2_ = TextureMailbox(m2, release_mailbox2_, sync_point2_);
+
+    gfx::Size size(128, 128);
+    EXPECT_TRUE(shared_memory_->CreateAndMapAnonymous(4 * size.GetArea()));
+    release_mailbox3_ = base::Bind(&MockMailboxCallback::Release2,
+                                   base::Unretained(&mock_callback_),
+                                   shared_memory_.get());
+    mailbox3_ = TextureMailbox(shared_memory_.get(), size, release_mailbox3_);
+  }
+
+  std::string mailbox_name1_;
+  std::string mailbox_name2_;
+  MockMailboxCallback mock_callback_;
+  TextureMailbox::ReleaseCallback release_mailbox1_;
+  TextureMailbox::ReleaseCallback release_mailbox2_;
+  TextureMailbox::ReleaseCallback release_mailbox3_;
+  TextureMailbox mailbox1_;
+  TextureMailbox mailbox2_;
+  TextureMailbox mailbox3_;
+  unsigned sync_point1_;
+  unsigned sync_point2_;
+  scoped_ptr<base::SharedMemory> shared_memory_;
+};
+
 class TextureLayerWithMailboxTest : public TextureLayerTest {
  protected:
   virtual void TearDown() {
     Mock::VerifyAndClearExpectations(&test_data_.mock_callback_);
     EXPECT_CALL(test_data_.mock_callback_,
                 Release(test_data_.mailbox_name1_,
                         test_data_.sync_point1_,
                         false)).Times(1);
     TextureLayerTest::TearDown();
   }
@@ skipping 603 matching lines @@
   scoped_refptr<TextureLayer> texture_layer_;
   scoped_ptr<TestWebGraphicsContext3D> texture_context_;
   unsigned texture_;
   int draw_count_;
 };
 
 SINGLE_AND_MULTI_THREAD_DIRECT_RENDERER_TEST_F(TextureLayerLostContextTest);
 
 }  // namespace
 }  // namespace cc