Enable asynchronous glReadPixels on Windows.

gpu/command_buffer/client/buffer_tracker_unittest.cc

Index: gpu/command_buffer/client/buffer_tracker_unittest.cc
diff --git a/gpu/command_buffer/client/buffer_tracker_unittest.cc b/gpu/command_buffer/client/buffer_tracker_unittest.cc
index a92839613407075a6d7498f88eb50145cd628c84..783c6659d5249ba27a4a25c9a3f0380dcb6f82d1 100644
--- a/gpu/command_buffer/client/buffer_tracker_unittest.cc
+++ b/gpu/command_buffer/client/buffer_tracker_unittest.cc
@@ -79,14 +79,21 @@ TEST_F(BufferTrackerTest, Basic) {
   const GLuint kId1 = 123;
   const GLuint kId2 = 124;
   const GLsizeiptr size = 64;
+  const GLsizeiptr metadata_size = 4;
 
   // Check we can create a Buffer.
-  BufferTracker::Buffer* buffer = buffer_tracker_->CreateBuffer(kId1, size);
+  BufferTracker::Buffer* buffer =
+      buffer_tracker_->CreateBuffer(kId1, size, metadata_size);
   ASSERT_TRUE(buffer != NULL);
   // Check we can get the same Buffer.
   EXPECT_EQ(buffer, buffer_tracker_->GetBuffer(kId1));
   // Check mapped memory address.
   EXPECT_TRUE(buffer->address() != NULL);
+  EXPECT_EQ(size, buffer->size());
+  // Check mapped memory address for the metadata.
+  EXPECT_EQ(static_cast<uint8_t*>(buffer->address()) + size,
+            static_cast<uint8_t*>(buffer->metadata_address()));
+  EXPECT_EQ(metadata_size, buffer->metadata_size());
   // Check shared memory was allocated.
   EXPECT_EQ(1lu, mapped_memory_->num_chunks());
   // Check we get nothing for a non-existent buffer.
@@ -104,7 +111,7 @@ TEST_F(BufferTrackerTest, ZeroSize) {
   const GLuint kId = 123;
 
   // Check we can create a Buffer with zero size.
-  BufferTracker::Buffer* buffer = buffer_tracker_->CreateBuffer(kId, 0);
+  BufferTracker::Buffer* buffer = buffer_tracker_->CreateBuffer(kId, 0, 0);
   ASSERT_TRUE(buffer != NULL);
   // Check mapped memory address.
   EXPECT_TRUE(buffer->address() == NULL);
@@ -120,7 +127,7 @@ TEST_F(BufferTrackerTest, LostContext) {
 
   command_buffer_->set_context_lost(true);
   // Check we can create a Buffer when after losing context.
-  BufferTracker::Buffer* buffer = buffer_tracker_->CreateBuffer(kId, size);
+  BufferTracker::Buffer* buffer = buffer_tracker_->CreateBuffer(kId, size, 0);
   ASSERT_TRUE(buffer != NULL);
   // Check mapped memory address.
   EXPECT_EQ(64u, buffer->size());
@@ -136,7 +143,7 @@ TEST_F(BufferTrackerTest, Unmanage) {
   const GLuint kId = 123;
   const GLsizeiptr size = 64;
 
-  BufferTracker::Buffer* buffer = buffer_tracker_->CreateBuffer(kId, size);
+  BufferTracker::Buffer* buffer = buffer_tracker_->CreateBuffer(kId, size, 0);
   ASSERT_TRUE(buffer != NULL);
   EXPECT_EQ(mapped_memory_->bytes_in_use(), static_cast<size_t>(size));