[Mac] AcceptInput() doesn't really need focus (as when called via "Go" button).

chrome/browser/autocomplete/autocomplete_edit_view_mac.mm

 // Copyright (c) 2009 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/autocomplete/autocomplete_edit_view_mac.h"
 
 #include "base/sys_string_conversions.h"
 #include "chrome/browser/autocomplete/autocomplete_edit.h"
 #include "chrome/browser/autocomplete/autocomplete_popup_model.h"
 #include "chrome/browser/autocomplete/autocomplete_popup_view_mac.h"
@@ skipping 272 matching lines @@
     UpdatePopup();
   }
 }
 
 NSRange AutocompleteEditViewMac::GetSelectedRange() const {
   DCHECK([field_ currentEditor]);
   return [[field_ currentEditor] selectedRange];
 }
 
 void AutocompleteEditViewMac::SetSelectedRange(const NSRange range) {
+  // This can be called when we don't have focus.  For instance, when
+  // the user clicks the "Go" button.
   if (model_->has_focus()) {
-    // TODO(shess): This should not be necessary.  Try to convert to
-    // DCHECK(IsFirstResponder()).
+    // TODO(shess): If |model_| thinks we have focus, this should not
+    // be necessary.  Try to convert to DCHECK(IsFirstResponder()).
     FocusLocation();
 
     // TODO(shess): What if it didn't get first responder, and there is
     // no field editor?  This will do nothing.  Well, at least it won't
     // crash.  Think of something more productive to do, or prove that
     // it cannot occur and DCHECK appropriately.
     [[field_ currentEditor] setSelectedRange:range];
   }
 }
 
@@ skipping 241 matching lines @@
   // Tell the model to reset itself.
   model_->OnKillFocus();
 }
 
 void AutocompleteEditViewMac::OnDidResignKey() {
   ClosePopup();
 }
 
 void AutocompleteEditViewMac::AcceptInput(
     WindowOpenDisposition disposition, bool for_drop) {
-  // We should only arrive here when the field is focussed.
-  DCHECK([field_ currentEditor]);
-
   model_->AcceptInput(disposition, for_drop);
 }
 
 void AutocompleteEditViewMac::FocusLocation() {
   // -makeFirstResponder: will select the entire field_.  If we're
   // already firstResponder, it's likely that we want to retain the
   // current selection.
   if (![field_ currentEditor]) {
     [[field_ window] makeFirstResponder:field_];
     DCHECK_EQ([field_ currentEditor], [[field_ window] firstResponder]);
@@ skipping 69 matching lines @@
   // TODO(shess): Figure out where the selection belongs.  On GTK,
   // it's set to the start of the text.
 }
 
 // Signal that we've lost focus when the window resigns key.
 - (void)windowDidResignKey:(NSNotification*)notification {
   edit_view_->OnDidResignKey();
 }
 
 @end