Normalize chrome://foo/ trailing slashes, ChromeURLHostEquals comparison, RIP dead consts.

chrome/browser/ui/browser.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/browser.h"
 
 #if defined(OS_WIN)
 #include <shellapi.h>
 #include <windows.h>
 #endif  // OS_WIN
@@ skipping 1567 matching lines @@
   // On X11, setting fullscreen mode is an async call to the X server, which
   // may or may not support fullscreen mode.
 #if !defined(USE_X11)
   UpdateCommandsForFullscreenMode(window_->IsFullscreen());
 #endif
 }
 
 #if defined(OS_CHROMEOS)
 void Browser::Search() {
   // If the NTP is showing, close it.
-  if (StartsWithASCII(GetSelectedTabContents()->GetURL().spec(),
-                       chrome::kChromeUINewTabURL, true)) {
+  const GURL& url = GetSelectedTabContents()->GetURL();
+  if (url.SchemeIs(chrome::kChromeUIScheme) &&
+      LowerCaseEqualsASCII(url.host(), chrome::kChromeUINewTabHost)) {
     CloseTab();
     return;
   }
 
   // Exit fullscreen to show omnibox.
   if (window_->IsFullscreen()) {
     ToggleFullscreenMode();
     // ToggleFullscreenMode is asynchronous, so we don't have omnibox
     // visible at this point. Wait for next event cycle which toggles
     // the visibility of omnibox before creating new tab.
@@ skipping 3019 matching lines @@
   TabContents* current_tab = GetSelectedTabContents();
   if (current_tab) {
     content_restrictions = current_tab->content_restrictions();
     NavigationEntry* active_entry = current_tab->controller().GetActiveEntry();
     // See comment in UpdateCommandsForTabState about why we call url().
     if (!SavePackage::IsSavableURL(active_entry ? active_entry->url() : GURL()))
       content_restrictions |= CONTENT_RESTRICTION_SAVE;
   }
   return content_restrictions;
 }