gpu: Add CHROMIUM_image support to in-process command buffer.

This makes it possible to use the in-process command buffer
with CHROMIUM_image extension. GpuMemoryBufferManager and
ImageFactory interfaces need to be provided when creating
an in-process command buffer. Existing implementations
of these interfaces in content/ should work just fine.

cc::TestGpuMemoryBufferManager and cc::TestImageFactory
are used for cc pixel tests. They provide a minimal
implementation of these interfaces using shared memory.

Note: shared memory is used for in-process testing as it
maps better to the GpuMemoryBuffer framework that has
been designed for multi-process usage. Non-shared memory
might be a bit more efficient but it would require more
complexity and not match real usage as well.

BUG=423533

Review URL: https://codereview.chromium.org/665463003

Cr-Commit-Position: refs/heads/master@{#301763}

1 files changed, 33 insertions, 0 deletions

diff --git a/cc/test/test_image_factory.cc b/cc/test/test_image_factory.cc
new file mode 100644
index 0000000..42e3502
--- /dev/null
+++ b/cc/test/test_image_factory.cc
@@ -0,0 +1,33 @@
+// Copyright 2014 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/test_image_factory.h"
+
+#include "ui/gl/gl_image_shared_memory.h"
+
+namespace cc {
+
+TestImageFactory::TestImageFactory() {
+}
+
+TestImageFactory::~TestImageFactory() {
+}
+
+scoped_refptr<gfx::GLImage> TestImageFactory::CreateImageForGpuMemoryBuffer(
+    const gfx::GpuMemoryBufferHandle& handle,
+    const gfx::Size& size,
+    gfx::GpuMemoryBuffer::Format format,
+    unsigned internalformat,
+    int client_id) {
+  DCHECK_EQ(handle.type, gfx::SHARED_MEMORY_BUFFER);
+
+  scoped_refptr<gfx::GLImageSharedMemory> image(
+      new gfx::GLImageSharedMemory(size, internalformat));
+  if (!image->Initialize(handle, format))
+    return nullptr;
+
+  return image;
+}
+
+}  // namespace cc