Implement GoToURL().

stepmania/src/arch/ArchHooks/ArchHooks_darwin.cpp

@@ -287,6 +287,16 @@ void ArchHooks_darwin::ExitTimeCriticalSection()
 #endif
 }
 
+bool ArchHooks_darwin::GoToURL( RString sUrl )
+{
+	CFURLRef url = CFURLCreateWithBytes( kCFAllocatorDefault, (const UInt8*)sUrl.data(),
+					     sUrl.length(), kCFStringEncodingUTF8, NULL );
+	OSStatus result = LSOpenCFURLRef( url, NULL );
+	
+	CFRelease( url );
+	return result == 0;
+}
+
 int64_t ArchHooks::GetMicrosecondsSinceStart( bool bAccurate )
 {
 	// http://developer.apple.com/qa/qa2004/qa1398.html

stepmania/src/arch/ArchHooks/ArchHooks_darwin.h

@@ -14,6 +14,7 @@ public:
 	RString GetPreferredLanguage();
 	void EnterTimeCriticalSection();
 	void ExitTimeCriticalSection();
+	bool GoToURL( RString sUrl );
 	
 protected:
 	RageMutex *TimeCritMutex;