Rename platform-independent ConstrainedWindow types to WebContentsModalDialog types (part 1)

chrome/browser/ui/constrained_window.cc

 // Copyright (c) 2011 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/constrained_window.h"
 
 #include "base/logging.h"
 
-void ConstrainedWindow::FocusConstrainedWindow() {
+void ConstrainedWindow::FocusWebContentsModalDialog() {
 }
 
-void ConstrainedWindow::PulseConstrainedWindow() {
+void ConstrainedWindow::PulseWebContentsModalDialog() {
 }
 
-bool ConstrainedWindow::CanShowConstrainedWindow() {
+bool ConstrainedWindow::CanShowWebContentsModalDialog() {
   return true;
 }
 
 gfx::NativeWindow ConstrainedWindow::GetNativeWindow() {
   NOTREACHED();
   return NULL;
 }