cc: Move TextureMailbox::ReleaseCallback to SingleReleaseCallback.

cc/resources/resource_provider.h

Index: cc/resources/resource_provider.h
diff --git a/cc/resources/resource_provider.h b/cc/resources/resource_provider.h
index 8b4b01b6acaa49c0741d5daf000cdb65b5edd6c1..88ff2749fd918d06a547a4b04892ef3b8633bc00 100644
--- a/cc/resources/resource_provider.h
+++ b/cc/resources/resource_provider.h
@@ -18,6 +18,8 @@
 #include "cc/base/cc_export.h"
 #include "cc/output/context_provider.h"
 #include "cc/output/output_surface.h"
+#include "cc/resources/release_callback.h"
+#include "cc/resources/single_release_callback.h"
 #include "cc/resources/texture_mailbox.h"
 #include "cc/resources/transferable_resource.h"
 #include "third_party/khronos/GLES2/gl2.h"
@@ -103,7 +105,9 @@ class CC_EXPORT ResourceProvider {
       unsigned texture_id);
 
   // Wraps an external texture mailbox into a GL resource.
-  ResourceId CreateResourceFromTextureMailbox(const TextureMailbox& mailbox);
+  ResourceId CreateResourceFromTextureMailbox(
+      const TextureMailbox& mailbox,
+      scoped_ptr<SingleReleaseCallback> release_callback);
 
   void DeleteResource(ResourceId id);
 
@@ -354,6 +358,7 @@ class CC_EXPORT ResourceProvider {
     // Query used to determine when asynchronous set pixels complete.
     unsigned gl_upload_query_id;
     TextureMailbox mailbox;
+    ReleaseCallback release_callback;
     uint8_t* pixels;
     uint8_t* pixel_buffer;
     int lock_for_read_count;