Added Dartium changes onto 45.0.2454.104

Source/platform/MIMETypeRegistry.h

Index: Source/platform/MIMETypeRegistry.h
diff --git a/Source/platform/MIMETypeRegistry.h b/Source/platform/MIMETypeRegistry.h
index 1cd05aa58528ce56af65aef835070e345b53e6c0..d1f0a5aefced9805c5f2412d6753f55c1a55c5ae 100644
--- a/Source/platform/MIMETypeRegistry.h
+++ b/Source/platform/MIMETypeRegistry.h
@@ -58,6 +58,10 @@ public:
     // resource.
     static bool isSupportedJavaScriptMIMEType(const String& mimeType);
 
+    // Check to see if a mime type is suitable for being loaded as a Dart
+    // resource.
+    static bool isSupportedDartMIMEType(const String& mimeType);
+
     // Check to see if a non-image mime type is suitable for being loaded as a
     // document in a frame. Includes supported JavaScript MIME types.
     static bool isSupportedNonImageMIMEType(const String& mimeType);