[Aura] Added Support for rendering software compositor frames as cc::TextureLayers.

cc/output/software_output_device.cc

Index: cc/output/software_output_device.cc
diff --git a/cc/output/software_output_device.cc b/cc/output/software_output_device.cc
index 719eeedf36aef8a0529799bca7450dceee401f5c..30817e0cff91b6a8844dab0d4e1aa5b311cbee8e 100644
--- a/cc/output/software_output_device.cc
+++ b/cc/output/software_output_device.cc
@@ -35,9 +35,10 @@ SkCanvas* SoftwareOutputDevice::BeginPaint(gfx::Rect damage_rect) {
 void SoftwareOutputDevice::EndPaint(SoftwareFrameData* frame_data) {
   DCHECK(device_);
   if (frame_data) {
+    frame_data->id = 0;
     frame_data->size = viewport_size_;
     frame_data->damage_rect = damage_rect_;
-    frame_data->dib_id = TransportDIB::Id();
+    frame_data->handle = base::SharedMemory::NULLHandle();
   }
 }
 
@@ -53,7 +54,7 @@ void SoftwareOutputDevice::Scroll(
   NOTIMPLEMENTED();
 }
 
-void SoftwareOutputDevice::ReclaimDIB(const TransportDIB::Id& id) {
+void SoftwareOutputDevice::ReclaimSoftwareFrame(unsigned id) {
   NOTIMPLEMENTED();
 }