Make cross-process CALayers work on Mac

content/browser/renderer_host/render_widget_helper_mac.mm

Index: content/browser/renderer_host/render_widget_helper_mac.mm
diff --git a/content/browser/renderer_host/render_widget_helper_mac.mm b/content/browser/renderer_host/render_widget_helper_mac.mm
index 824b2265d708e6508151f695768e57e074a1ec09..945b182e47c3c81882af9af39c8e3bde56e371a6 100644
--- a/content/browser/renderer_host/render_widget_helper_mac.mm
+++ b/content/browser/renderer_host/render_widget_helper_mac.mm
@@ -12,6 +12,7 @@
 #include "content/browser/gpu/gpu_process_host.h"
 #include "content/browser/gpu/gpu_surface_tracker.h"
 #include "content/common/gpu/gpu_messages.h"
+#include "content/common/gpu/surface_handle_types_mac.h"
 
 namespace {
 
@@ -21,9 +22,9 @@ void OnNativeSurfaceBuffersSwappedOnUIThread(
   DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
   gfx::AcceleratedWidget native_widget =
       content::GpuSurfaceTracker::Get()->AcquireNativeWidget(params.surface_id);
-  IOSurfaceID io_surface_handle = static_cast<IOSurfaceID>(
+  IOSurfaceID io_surface_id = content::IOSurfaceIDFromSurfaceHandle(
       params.surface_handle);
-  [native_widget gotAcceleratedIOSurfaceFrame:io_surface_handle
+  [native_widget gotAcceleratedIOSurfaceFrame:io_surface_id
                           withOutputSurfaceID:params.surface_id
                                 withPixelSize:params.size
                               withScaleFactor:params.scale_factor];