Deinline even more destructors.

chrome/browser/notifications/balloon_host.cc

Index: chrome/browser/notifications/balloon_host.cc
diff --git a/chrome/browser/notifications/balloon_host.cc b/chrome/browser/notifications/balloon_host.cc
index 8c778d084ef93902a1f339273bddfc9c441e5a32..28b61b48385bcb7787c4b5b86b876d875b845258 100644
--- a/chrome/browser/notifications/balloon_host.cc
+++ b/chrome/browser/notifications/balloon_host.cc
@@ -190,6 +190,11 @@ void BalloonHost::ShowCreatedWindow(int route_id,
   browser->AddTabContents(contents, disposition, initial_pos, user_gesture);
 }
 
+bool BalloonHost::PreHandleKeyboardEvent(const NativeWebKeyboardEvent& event,
+                                         bool* is_keyboard_shortcut) {
+  return false;
+}
+
 void BalloonHost::UpdatePreferredSize(const gfx::Size& new_size) {
   balloon_->SetContentPreferredSize(new_size);
 }