Cleanup: Remove "gray text" logic from Omnibox

chrome/browser/ui/cocoa/omnibox/omnibox_view_mac.mm

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/cocoa/omnibox/omnibox_view_mac.h"
 
 #include <Carbon/Carbon.h>  // kVK_Return
 
 #include "base/mac/foundation_util.h"
 #include "base/memory/ptr_util.h"
@@ skipping 698 matching lines @@
 gfx::NativeView OmniboxViewMac::GetNativeView() const {
   return field_;
 }
 
 gfx::NativeView OmniboxViewMac::GetRelativeWindowForPopup() const {
   // Not used on mac.
   NOTREACHED();
   return NULL;
 }
 
-void OmniboxViewMac::SetGrayTextAutocompletion(
-    const base::string16& suggest_text) {
-  if (suggest_text == suggest_text_)
-    return;
-  suggest_text_ = suggest_text;
-  [field_ setGrayTextAutocompletion:base::SysUTF16ToNSString(suggest_text)
-                          textColor:SuggestTextColor()];
-}
-
-base::string16 OmniboxViewMac::GetGrayTextAutocompletion() const {
-  return suggest_text_;
-}
-
 int OmniboxViewMac::GetTextWidth() const {
   // Not used on mac.
   NOTREACHED();
   return 0;
 }
 
 int OmniboxViewMac::GetWidth() const {
   return ceil([field_ bounds].size.width);
 }
 
@@ skipping 68 matching lines @@
     }
 
     if ((cmd == @selector(insertTab:) ||
         cmd == @selector(insertTabIgnoringFieldEditor:)) &&
         !model()->is_keyword_hint()) {
       model()->OnUpOrDownKeyPressed(1);
       return true;
     }
   }
 
-  if (cmd == @selector(moveRight:)) {
-    // Only commit suggested text if the cursor is all the way to the right and
-    // there is no selection.
-    if (suggest_text_.length() > 0 && IsCaretAtEnd()) {
-      model()->CommitSuggestedText();
-      return true;
-    }
-  }
-
   if (cmd == @selector(scrollPageDown:)) {
     model()->OnUpOrDownKeyPressed(model()->result().size());
     return true;
   }
 
   if (cmd == @selector(scrollPageUp:)) {
     model()->OnUpOrDownKeyPressed(-model()->result().size());
     return true;
   }
 
@@ skipping 279 matching lines @@
                               display_text);
   NSDictionary* notification_info = @{
       NSAccessibilityAnnouncementKey : announcement,
       NSAccessibilityPriorityKey :     @(NSAccessibilityPriorityHigh)
   };
   NSAccessibilityPostNotificationWithUserInfo(
       [field_ window],
       NSAccessibilityAnnouncementRequestedNotification,
       notification_info);
 }