MediaStream API: Addding support for UA specific error messages for gUM

Source/modules/mediastream/NavigatorUserMediaError.h

Index: Source/modules/mediastream/NavigatorUserMediaError.h
diff --git a/Source/modules/mediastream/NavigatorUserMediaError.h b/Source/modules/mediastream/NavigatorUserMediaError.h
index 928aa90fa4870b0e9f75b5bbbb0c823a9fa54564..867b2bffdb32208082a91d9d0b46e94f7b114882 100644
--- a/Source/modules/mediastream/NavigatorUserMediaError.h
+++ b/Source/modules/mediastream/NavigatorUserMediaError.h
@@ -39,23 +39,26 @@ public:
         NameConstraintNotSatisfied
     };
 
-    static PassRefPtr<NavigatorUserMediaError> create(Name name, const String& message, const String& constraintName)
+    static PassRefPtr<NavigatorUserMediaError> create(Name, const String& message, const String& constraintName);
+
+    static PassRefPtr<NavigatorUserMediaError> create(const String& name, const String& message, const String& constraintName)
     {
         return adoptRef(new NavigatorUserMediaError(name, message, constraintName));
     }
 
-    String name() const;
+    String name() const { return m_name; }
     const String& message() const { return m_message; }
     const String& constraintName() const { return m_constraintName; }
 
 private:
-    NavigatorUserMediaError(Name name, const String& message, const String& constraintName)
+    NavigatorUserMediaError(const String& name, const String& message, const String& constraintName)
         : m_name(name), m_message(message), m_constraintName(constraintName)
     {
+        ASSERT(!name.isEmpty());
         ScriptWrappable::init(this);
     }
 
-    Name m_name;
+    String m_name;
     String m_message;
     String m_constraintName;
 };