Add logging for ScriptedAnimationController.

Source/platform/Logging.cpp

Index: Source/platform/Logging.cpp
diff --git a/Source/platform/Logging.cpp b/Source/platform/Logging.cpp
index 4dbdd87f530afcf7519b980be00564287ed3e527..fdb4bf5e5c244c3ea33cbfa6ae325e43a8a5bdf7 100644
--- a/Source/platform/Logging.cpp
+++ b/Source/platform/Logging.cpp
@@ -67,6 +67,7 @@ WTFLogChannel LogWebAudio =           { WTFLogChannelOff };
 WTFLogChannel LogCompositing =        { WTFLogChannelOff };
 WTFLogChannel LogGamepad =            { WTFLogChannelOff };
 
+WTFLogChannel LogScriptedAnimationController = { WTFLogChannelOff };
 
 WTFLogChannel* getChannelFromName(const String& channelName)
 {
@@ -148,6 +149,9 @@ WTFLogChannel* getChannelFromName(const String& channelName)
     if (equalIgnoringCase(channelName, String("Gamepad")))
         return &LogGamepad;
 
+    if (equalIgnoringCase(channelName, String("ScriptedAnimationController")))
+        return &LogScriptedAnimationController;
+
     return 0;
 }