cc: Refactor ResourceProvider.

cc/trees/layer_tree_host_impl.cc

Index: cc/trees/layer_tree_host_impl.cc
diff --git a/cc/trees/layer_tree_host_impl.cc b/cc/trees/layer_tree_host_impl.cc
index de1e8ffcacd26e2befe65d392552ba699e0a7b75..88faab46ca8f1c60c8a467fdaee06870b1bd8336 100644
--- a/cc/trees/layer_tree_host_impl.cc
+++ b/cc/trees/layer_tree_host_impl.cc
@@ -62,11 +62,14 @@
 #include "cc/trees/occlusion_tracker.h"
 #include "cc/trees/single_thread_proxy.h"
 #include "cc/trees/tree_synchronizer.h"
+#include "gpu/command_buffer/client/gles2_interface.h"
 #include "gpu/GLES2/gl2extchromium.h"
 #include "ui/gfx/frame_time.h"
 #include "ui/gfx/size_conversions.h"
 #include "ui/gfx/vector2d_conversions.h"
 
+using gpu::gles2::GLES2Interface;
+
 namespace {
 
 void DidVisibilityChange(cc::LayerTreeHostImpl* id, bool visible) {
@@ -1352,8 +1355,9 @@ void LayerTreeHostImpl::ReclaimResources(const CompositorFrameAck* ack) {
   // If we're not visible, we likely released resources, so we want to
   // aggressively flush here to make sure those DeleteTextures make it to the
   // GPU process to free up the memory.
-  if (resource_provider_ && !visible_)
-    resource_provider_->ShallowFlushIfSupported();
+  if (output_surface_ && !visible_) {

[danakj, 2014/07/10 17:01:44]

you'll have to check that context_provider() is not null too, it will be when in
software mode

[sohanjg, 2014/07/11 16:43:32]

Done.

+    output_surface_->context_provider()->ContextGL()->ShallowFlushCHROMIUM();
+  }
 }
 
 void LayerTreeHostImpl::OnCanDrawStateChangedForTree() {