Chagned nsFrameImageLoader::Init to use ToNewUTF8String instead of ToNewCString

in order to avoid data loss for non ASCII data, bug 61132, r=ftang, sr=attinasi.

layout/base/src/nsFrameImageLoader.cpp

@@ -176,7 +176,7 @@ nsFrameImageLoader::Init(nsIPresContext* aPresContext,
   }
 
   // Start image load request
-  char* cp = aURL.ToNewCString();
+  char* cp = aURL.ToNewUTF8String();
 
 
   mImageRequest = aGroup->GetImage(cp, this, aBackgroundColor,