Mozart: Specify texture origin explicitly.

services/gfx/compositor/render/render_image.cc

 // Copyright 2015 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 "services/gfx/compositor/render/render_image.h"
 
 #include "base/bind.h"
 #include "base/location.h"
 #include "base/logging.h"
 #include "mojo/skia/ganesh_image_factory.h"
@@ skipping 15 matching lines @@
   scoped_refptr<base::TaskRunner> const task_runner_;
   base::Closure const release_task_;
 };
 
 class RenderImage::Generator : public mojo::skia::MailboxTextureImageGenerator {
  public:
   Generator(const std::shared_ptr<Releaser>& releaser,
             const GLbyte mailbox_name[GL_MAILBOX_SIZE_CHROMIUM],
             GLuint sync_point,
             uint32_t width,
-            uint32_t height)
-      : MailboxTextureImageGenerator(mailbox_name, sync_point, width, height),
+            uint32_t height,
+            GrSurfaceOrigin origin)
+      : MailboxTextureImageGenerator(mailbox_name,
+                                     sync_point,
+                                     width,
+                                     height,
+                                     origin),
         releaser_(releaser) {
     DCHECK(releaser_);
   }
 
   ~Generator() override {}
 
  private:
   std::shared_ptr<Releaser> releaser_;
 };
 
 RenderImage::RenderImage(const skia::RefPtr<SkImage>& image,
                          const std::shared_ptr<Releaser>& releaser)
     : image_(image), releaser_(releaser) {
   DCHECK(image_);
   DCHECK(releaser_);
 }
 
 RenderImage::~RenderImage() {}
 
 std::shared_ptr<RenderImage> RenderImage::CreateFromMailboxTexture(
     const GLbyte mailbox_name[GL_MAILBOX_SIZE_CHROMIUM],
     GLuint sync_point,
     uint32_t width,
     uint32_t height,
+    mojo::gfx::composition::MailboxTextureResource::Origin origin,
     const scoped_refptr<base::TaskRunner>& task_runner,
     const base::Closure& release_task) {
   std::shared_ptr<Releaser> releaser =
       std::make_shared<Releaser>(task_runner, release_task);
   skia::RefPtr<SkImage> image = skia::AdoptRef(SkImage::NewFromGenerator(
-      new Generator(releaser, mailbox_name, sync_point, width, height)));
+      new Generator(releaser, mailbox_name, sync_point, width, height,
+                    origin == mojo::gfx::composition::MailboxTextureResource::
+                                  Origin::BOTTOM_LEFT
+                        ? kBottomLeft_GrSurfaceOrigin
+                        : kTopLeft_GrSurfaceOrigin)));
   if (!image)
     return nullptr;
 
   return std::make_shared<RenderImage>(image, releaser);
 }
 
 }  // namespace compositor