cc: Use correct message loop proxy in BlockingTaskRunner

cc/layers/texture_layer_impl.cc

Index: cc/layers/texture_layer_impl.cc
diff --git a/cc/layers/texture_layer_impl.cc b/cc/layers/texture_layer_impl.cc
index 80938babe322327bcf51352f09e0c4def157daec..0a799b65ff658214d26d79c206887550bc0ed033 100644
--- a/cc/layers/texture_layer_impl.cc
+++ b/cc/layers/texture_layer_impl.cc
@@ -11,7 +11,7 @@
 #include "cc/quads/texture_draw_quad.h"
 #include "cc/resources/platform_color.h"
 #include "cc/resources/scoped_resource.h"
-#include "cc/resources/single_release_callback.h"
+#include "cc/resources/single_release_callback_impl.h"
 #include "cc/trees/layer_tree_impl.h"
 #include "cc/trees/occlusion_tracker.h"
 
@@ -37,7 +37,7 @@ TextureLayerImpl::~TextureLayerImpl() { FreeTextureMailbox(); }
 
 void TextureLayerImpl::SetTextureMailbox(
     const TextureMailbox& mailbox,
-    scoped_ptr<SingleReleaseCallback> release_callback) {
+    scoped_ptr<SingleReleaseCallbackImpl> release_callback) {
   DCHECK_EQ(mailbox.IsValid(), !!release_callback);
   FreeTextureMailbox();
   texture_mailbox_ = mailbox;
@@ -238,16 +238,19 @@ const char* TextureLayerImpl::LayerTypeAsString() const {
 }
 
 void TextureLayerImpl::FreeTextureMailbox() {
+  ResourceProvider* resource_provider = layer_tree_impl()->resource_provider();
   if (own_mailbox_) {
     DCHECK(!external_texture_resource_);
-    if (release_callback_)
-      release_callback_->Run(texture_mailbox_.sync_point(), false);
+    if (release_callback_) {
+      release_callback_->Run(
+          texture_mailbox_.sync_point(),
+          false,
+          resource_provider->blocking_main_thread_task_runner());

[danakj, 2014/09/03 16:09:36]

Can you add a getter for this on layer_tree_impl() that gets it from the Proxy
instead of adding an accessor for this on ResourceProvider? (desire to keep RP
interface minimal and focused on resource providing)

[Sami, 2014/09/03 17:59:12]

Great idea, done.

+    }
     texture_mailbox_ = TextureMailbox();
     release_callback_.reset();
   } else if (external_texture_resource_) {
     DCHECK(!own_mailbox_);
-    ResourceProvider* resource_provider =
-        layer_tree_impl()->resource_provider();
     resource_provider->DeleteResource(external_texture_resource_);
     external_texture_resource_ = 0;
   }