[Mac] Don't load -pasteAndGo: menu entry which will be bounced.

chrome/browser/ui/cocoa/location_bar/autocomplete_text_field_editor.mm

Index: chrome/browser/ui/cocoa/location_bar/autocomplete_text_field_editor.mm
diff --git a/chrome/browser/ui/cocoa/location_bar/autocomplete_text_field_editor.mm b/chrome/browser/ui/cocoa/location_bar/autocomplete_text_field_editor.mm
index 5f2c5316c7a18f9e53aa98920d39df15e06ed64d..be2b8c4ce51cbd9129d99c0193d353bb1f194d3b 100644
--- a/chrome/browser/ui/cocoa/location_bar/autocomplete_text_field_editor.mm
+++ b/chrome/browser/ui/cocoa/location_bar/autocomplete_text_field_editor.mm
@@ -247,14 +247,16 @@ BOOL ThePasteboardIsTooDamnBig() {
   // greyed-out "Paste and Go"?
   if ([self isEditable]) {
     // Paste and go/search.
-    AutocompleteTextFieldObserver* observer = [self observer];
-    DCHECK(observer);
-    const int string_id = observer->GetPasteActionStringId();
-    NSString* label = l10n_util::GetNSStringWithFixup(string_id);
-    DCHECK([label length]);
-    [menu addItemWithTitle:label
-                    action:@selector(pasteAndGo:)
-             keyEquivalent:@""];
+    if (!ThePasteboardIsTooDamnBig()) {
+      AutocompleteTextFieldObserver* observer = [self observer];
+      DCHECK(observer);
+      const int string_id = observer->GetPasteActionStringId();
+      NSString* label = l10n_util::GetNSStringWithFixup(string_id);
+      DCHECK([label length]);
+      [menu addItemWithTitle:label
+                      action:@selector(pasteAndGo:)
+               keyEquivalent:@""];
+    }
 
     NSString* search_engine_label =
         l10n_util::GetNSStringWithFixup(IDS_EDIT_SEARCH_ENGINES);