Add TODO for TEC usage, which might be better controlled by USE(ICU_UNICODE)...

third_party/WebKit/WebCore/platform/ThreadGlobalData.h

Index: third_party/WebKit/WebCore/platform/ThreadGlobalData.h
===================================================================
--- third_party/WebKit/WebCore/platform/ThreadGlobalData.h	(revision 7518)
+++ third_party/WebKit/WebCore/platform/ThreadGlobalData.h	(working copy)
@@ -50,6 +50,8 @@
         ICUConverterWrapper& cachedConverterICU() { return *m_cachedConverterICU; }
 #endif
 
+// TODO(awalker): TEC isn't really a Darwin feature, so we should look at
+// turning on USE(ICU_UNICODE) instead.
 #if PLATFORM(DARWIN)
         TECConverterWrapper& cachedConverterTEC() { return *m_cachedConverterTEC; }
 #endif
@@ -63,6 +65,8 @@
         ICUConverterWrapper* m_cachedConverterICU;
 #endif
 
+// TODO(awalker): TEC isn't really a Darwin feature, so we should look at
+// turning on USE(ICU_UNICODE) instead.
 #if PLATFORM(DARWIN)
         TECConverterWrapper* m_cachedConverterTEC;
 #endif