Include debug name in GraphicsLayerDebugInfo.

public/platform/WebLayerClient.h

Index: public/platform/WebLayerClient.h
diff --git a/public/platform/WebLayerClient.h b/public/platform/WebLayerClient.h
index 52dd7c729e0734409e30399cf1a90d0f6180c054..6660310963726772b11cda5db40528d905b4fc6d 100644
--- a/public/platform/WebLayerClient.h
+++ b/public/platform/WebLayerClient.h
@@ -44,8 +44,13 @@ public:
     // Returns a pointer to a debug info object, if one has been computed.
     // If not, returns 0. If the returned pointer is non-zero, the caller takes
     // ownership of the pointer.
+    // FIXME: delete this once cc migrates to takeDebugInfoFor.
     virtual WebGraphicsLayerDebugInfo* takeDebugInfo() = 0;
 
+    // Similar to takeDebugInfo, but returns WebLayer-specific information
+    // (only the debug name for now).
+    virtual WebGraphicsLayerDebugInfo* takeDebugInfoFor(WebLayer*) = 0;
+
 protected:
     virtual ~WebLayerClient() { }
 };