Accept keyword by pressing space.

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

 // Copyright (c) 2010 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.
 
 #import "chrome/browser/ui/cocoa/location_bar/location_bar_view_mac.h"
 
 #include "app/l10n_util_mac.h"
 #include "app/resource_bundle.h"
 #include "base/stl_util-inl.h"
 #include "base/string_util.h"
@@ skipping 349 matching lines @@
 SkBitmap LocationBarViewMac::GetFavIcon() const {
   NOTIMPLEMENTED();
   return SkBitmap();
 }
 
 std::wstring LocationBarViewMac::GetTitle() const {
   NOTIMPLEMENTED();
   return std::wstring();
 }
 
+bool LocationBarViewMac::IsKeywordHintVisible() const {
+  return keyword_hint_decoration_->IsVisible();
+}
+
 void LocationBarViewMac::Revert() {
   edit_view_->RevertAll();
 }
 
 // TODO(pamg): Change all these, here and for other platforms, to size_t.
 int LocationBarViewMac::PageActionCount() {
   return static_cast<int>(page_action_decorations_.size());
 }
 
 int LocationBarViewMac::PageActionVisibleCount() {
@@ skipping 306 matching lines @@
 
   // These need to change anytime the layout changes.
   // TODO(shess): Anytime the field editor might have changed, the
   // cursor rects almost certainly should have changed.  The tooltips
   // might change even when the rects don't change.
   [field_ resetFieldEditorFrameIfNeeded];
   [field_ updateCursorAndToolTipRects];
 
   [field_ setNeedsDisplay:YES];
 }