Mailbox support for texture layers.

cc/resource_provider.h

Index: cc/resource_provider.h
diff --git a/cc/resource_provider.h b/cc/resource_provider.h
index d90d2244340edfdc731913b8505f1dde6c5e4005..c96c5a88fda441aece75c0649266217837475063 100644
--- a/cc/resource_provider.h
+++ b/cc/resource_provider.h
@@ -5,7 +5,12 @@
 #ifndef CC_RESOURCE_PROVIDER_H_
 #define CC_RESOURCE_PROVIDER_H_
 
+#include <deque>
+#include <string>
+#include <vector>
+
 #include "base/basictypes.h"
+#include "base/callback.h"
 #include "base/hash_tables.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/threading/thread_checker.h"
@@ -17,8 +22,6 @@
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "third_party/skia/include/core/SkCanvas.h"
 #include "ui/gfx/size.h"
-#include <deque>
-#include <vector>
 
 namespace WebKit {
 class WebGraphicsContext3D;
@@ -82,6 +85,9 @@ public:
     // Wraps an external texture into a GL resource.
     ResourceId createResourceFromExternalTexture(unsigned textureId);
 
+    // Wraps an external texture mailbox into a GL resource.
+    ResourceId createResourceFromTextureMailbox(const std::string& mailboxName, const base::Callback<void(unsigned)>& releaseCallback);

[jamesr, 2013/01/07 21:11:49]

this is what I was talking about.  ResourceProvider shouldn't depend on
TextureLayer, though - maybe this one is OK (TextureLayer can't really depend on
ResourceProvider directly either)

[alexst (slow to review), 2013/01/07 21:38:47]

I agree it would look better.

Maybe splitting the mailbox into its own header and putting the typedef there is
a good way to go.

+
     void deleteResource(ResourceId);
 
     // Update pixels from image, copying sourceRect (in image) into destRect (in the resource).