Mac video: Enable AVSampleBufferDisplayLayer for h264

gpu/ipc/service/image_transport_surface_overlay_mac.mm

 // 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 "gpu/ipc/service/image_transport_surface_overlay_mac.h"
 
 #include <CoreGraphics/CoreGraphics.h>
 #include <IOSurface/IOSurface.h>
 #include <OpenGL/CGLRenderers.h>
 #include <OpenGL/CGLTypes.h>
@@ skipping 283 matching lines @@
     float opacity,
     unsigned background_color,
     unsigned edge_aa_mask,
     const gfx::RectF& rect,
     bool is_clipped,
     const gfx::RectF& clip_rect,
     const gfx::Transform& transform,
     int sorting_context_id,
     unsigned filter) {
   base::ScopedCFTypeRef<IOSurfaceRef> io_surface;
+  base::ScopedCFTypeRef<CVPixelBufferRef> cv_pixel_buffer;
   if (contents_image) {
-    io_surface =
-        static_cast<gl::GLImageIOSurface*>(contents_image)->io_surface();
+    gl::GLImageIOSurface* io_surface_image =
+        static_cast<gl::GLImageIOSurface*>(contents_image);
+    io_surface = io_surface_image->io_surface();
+    cv_pixel_buffer = io_surface_image->cv_pixel_buffer();
   }
   if (!pending_ca_layer_tree_)
     pending_ca_layer_tree_.reset(new ui::CALayerTree);
   return pending_ca_layer_tree_->ScheduleCALayer(
       is_clipped, gfx::ToEnclosingRect(clip_rect), sorting_context_id,
-      transform, io_surface, contents_rect, gfx::ToEnclosingRect(rect),
-      background_color, edge_aa_mask, opacity);
+      transform, io_surface, cv_pixel_buffer, contents_rect,
+      gfx::ToEnclosingRect(rect), background_color, edge_aa_mask, opacity);
 }
 
 bool ImageTransportSurfaceOverlayMac::IsSurfaceless() const {
   return true;
 }
 
 bool ImageTransportSurfaceOverlayMac::Resize(const gfx::Size& pixel_size,
                                              float scale_factor,
                                              bool has_alpha) {
   // Flush through any pending frames.
@@ skipping 18 matching lines @@
   gl_renderer_id_ = context_renderer_id & kCGLRendererIDMatchingMask;
 
   // Post a task holding a reference to the new GL context. The reason for
   // this is to avoid creating-then-destroying the context for every image
   // transport surface that is observing the GPU switch.
   base::MessageLoop::current()->PostTask(
       FROM_HERE, base::Bind(&IOSurfaceContextNoOp, context_on_new_gpu));
 }
 
 }  // namespace gpu