Mac Overlays: Wire up overlays on Mac

content/browser/compositor/gpu_process_transport_factory.cc

 // 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 "content/browser/compositor/gpu_process_transport_factory.h"
 
 #include <string>
 
 #include "base/bind.h"
 #include "base/command_line.h"
@@ skipping 46 matching lines @@
 #include "content/browser/compositor/browser_compositor_overlay_candidate_validator_ozone.h"
 #include "content/browser/compositor/software_output_device_ozone.h"
 #include "ui/ozone/public/overlay_candidates_ozone.h"
 #include "ui/ozone/public/overlay_manager_ozone.h"
 #include "ui/ozone/public/ozone_platform.h"
 #include "ui/ozone/public/ozone_switches.h"
 #elif defined(USE_X11)
 #include "content/browser/compositor/software_output_device_x11.h"
 #elif defined(OS_MACOSX)
 #include "content/browser/compositor/software_output_device_mac.h"
+#include "ui/base/cocoa/remote_layer_api.h"
 #endif
 
 using cc::ContextProvider;
 using gpu::gles2::GLES2Interface;
 
 static const int kNumRetriesBeforeSoftwareFallback = 4;
 
 namespace content {
 namespace {
 
@@ skipping 203 matching lines @@
                 ->GetOverlayManager()
                 ->CanShowPrimaryPlaneAsOverlay()) {
       surface =
           make_scoped_ptr(new GpuSurfacelessBrowserCompositorOutputSurface(
               context_provider, data->surface_id, compositor->vsync_manager(),
               CreateOverlayCandidateValidator(compositor->widget()),
               GL_TEXTURE_2D, GL_RGB, BrowserGpuMemoryBufferManager::current()));
     } else
 #endif
     {
-      surface = make_scoped_ptr(new GpuBrowserCompositorOutputSurface(
-          context_provider, compositor->vsync_manager(),
-          CreateOverlayCandidateValidator(compositor->widget())));
+#if defined(OS_MACOSX)
+      if (ui::RemoteLayerAPISupported()) {
+        surface =
+            make_scoped_ptr(new GpuSurfacelessBrowserCompositorOutputSurface(
+                context_provider, data->surface_id, compositor->vsync_manager(),
+                CreateOverlayCandidateValidator(compositor->widget()),
+                GL_TEXTURE_RECTANGLE_ARB, GL_BGRA_EXT,
+                BrowserGpuMemoryBufferManager::current()));
+      }
+#endif
+      if (!surface) {
+        surface = make_scoped_ptr(new GpuBrowserCompositorOutputSurface(
+            context_provider, compositor->vsync_manager(),
+            CreateOverlayCandidateValidator(compositor->widget())));
+      }
     }
   }
 
   // TODO(piman): Use GpuSurfaceTracker to map ids to surfaces instead of an
   // output_surface_map_ here.
   output_surface_map_.AddWithID(surface.get(), data->surface_id);
   data->surface = surface.get();
   if (data->reflector)
     data->reflector->OnSourceSurfaceReady(data->surface);
 
@@ skipping 288 matching lines @@
   FOR_EACH_OBSERVER(ImageTransportFactoryObserver,
                     observer_list_,
                     OnLostResources());
 
   // Kill things that use the shared context before killing the shared context.
   lost_gl_helper.reset();
   lost_shared_main_thread_contexts  = NULL;
 }
 
 }  // namespace content