Pass setScriptableObjectProperty calls on to Pepper again

Source/bindings/core/v8/custom/V8HTMLPlugInElementCustom.cpp

Index: Source/bindings/core/v8/custom/V8HTMLPlugInElementCustom.cpp
diff --git a/Source/bindings/core/v8/custom/V8HTMLPlugInElementCustom.cpp b/Source/bindings/core/v8/custom/V8HTMLPlugInElementCustom.cpp
index 2730cce547b0ac730412b6008953a5dc2597d63d..292d5c075519cf64470020bb11c6373f96ec43c2 100644
--- a/Source/bindings/core/v8/custom/V8HTMLPlugInElementCustom.cpp
+++ b/Source/bindings/core/v8/custom/V8HTMLPlugInElementCustom.cpp
@@ -100,6 +100,17 @@ void setScriptableObjectProperty(PropertyType property, v8::Local<v8::Value> val
         callNpObjectSetter(instance, property, value, info);
         return;
     }
+
+    // FIXME: The gTalk pepper plugin is the only plugin to make use of
+    // SetProperty and that is being deprecated. This can be removed as soon as
+    // it goes away.
+    // Call SetProperty on a pepper plugin's scriptable object. Note that we
+    // never set the return value here which would indicate that the plugin has
+    // intercepted the SetProperty call, which means that the property on the
+    // DOM element will also be set. For plugin's that don't intercept the call
+    // (all except gTalk) this makes no difference at all. For gTalk the fact
+    // that the property on the DOM element also gets set is inconsequential.
+    instance->Set(property, value);
 }
 } // namespace