Remove spellchecker feedback.

components/spellcheck/common/spellcheck_result.h

Index: components/spellcheck/common/spellcheck_result.h
diff --git a/components/spellcheck/common/spellcheck_result.h b/components/spellcheck/common/spellcheck_result.h
index 61d193b07cabdf1c60203845f4ec128e0ccc9206..0c4fb45eff7752edc88a9b2ba0ea7ca20150a9d7 100644
--- a/components/spellcheck/common/spellcheck_result.h
+++ b/components/spellcheck/common/spellcheck_result.h
@@ -20,24 +20,18 @@ struct SpellCheckResult {
     // Gray underline for correctly spelled words that are incorrectly used in
     // their context.
     GRAMMAR = 1 << 2,
-
-    // No underline for words that spellcheck needs to track. For example, a
-    // word in the custom spellcheck dictionary.
-    INVISIBLE = 1 << 3,
   };
 
   explicit SpellCheckResult(Decoration d = SPELLING,
                             int loc = 0,
                             int len = 0,
-                            const base::string16& rep = base::string16(),
-                            uint32_t h = 0)
-      : decoration(d), location(loc), length(len), replacement(rep), hash(h) {}
+                            const base::string16& rep = base::string16())
+      : decoration(d), location(loc), length(len), replacement(rep) {}
 
   Decoration decoration;
   int location;
   int length;
   base::string16 replacement;
-  uint32_t hash;
 };
 
 #endif  // COMPONENTS_SPELLCHECK_COMMON_SPELLCHECK_RESULT_H_