Add PERSISTENT_MAP usage for GpuMemoryBuffers.

content/browser/compositor/gpu_process_transport_factory.cc

Index: content/browser/compositor/gpu_process_transport_factory.cc
diff --git a/content/browser/compositor/gpu_process_transport_factory.cc b/content/browser/compositor/gpu_process_transport_factory.cc
index 4abccc1a4f815d6be83df789cacc728c746f909a..1f397f921dc6db3b7769de1c8a65c557c095076d 100644
--- a/content/browser/compositor/gpu_process_transport_factory.cc
+++ b/content/browser/compositor/gpu_process_transport_factory.cc
@@ -401,8 +401,26 @@ void GpuProcessTransportFactory::RemoveCompositor(ui::Compositor* compositor) {
 
 bool GpuProcessTransportFactory::DoesCreateTestContexts() { return false; }
 
-uint32 GpuProcessTransportFactory::GetImageTextureTarget() {
-  return BrowserGpuChannelHostFactory::GetImageTextureTarget();
+uint32 GpuProcessTransportFactory::GetMapImageTextureTarget() {
+  // TODO(reveman): We currently assume that the compositor will use BGRA_8888
+  // if it's able to, and RGBA_8888 otherwise. Since we don't know what it will
+  // use we hardcode BGRA_8888 here for now. We should instead move decisions
+  // about GpuMemoryBuffer format to the browser embedder so we know it here,
+  // and pass that decision to the compositor.
+  gfx::GpuMemoryBuffer::Format format = gfx::GpuMemoryBuffer::BGRA_8888;
+  return BrowserGpuChannelHostFactory::GetImageTextureTarget(
+      format, gfx::GpuMemoryBuffer::MAP);
+}
+
+uint32 GpuProcessTransportFactory::GetPersistentMapImageTextureTarget() {
+  // TODO(reveman): We currently assume that the compositor will use BGRA_8888
+  // if it's able to, and RGBA_8888 otherwise. Since we don't know what it will
+  // use we hardcode BGRA_8888 here for now. We should instead move decisions
+  // about GpuMemoryBuffer format to the browser embedder so we know it here,
+  // and pass that decision to the compositor.
+  gfx::GpuMemoryBuffer::Format format = gfx::GpuMemoryBuffer::BGRA_8888;
+  return BrowserGpuChannelHostFactory::GetImageTextureTarget(
+      format, gfx::GpuMemoryBuffer::PERSISTENT_MAP);
 }
 
 cc::SharedBitmapManager* GpuProcessTransportFactory::GetSharedBitmapManager() {