revert r71405 as it is causing ui test failures:

Make new chrome UI security model the default.

allows us to update URL in chrome://settings when the user navigates within it.

BUG=57485
TEST=manual

Review URL: http://codereview.chromium.org/6277018

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@72420 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/renderer_host/browser_render_process_host.cc

@@ -721,6 +721,7 @@ void BrowserRenderProcessHost::PropagateBrowserCommandLineToRenderer(
     switches::kRemoteShellPort,
     switches::kEnablePepperTesting,
     switches::kAllowOutdatedPlugins,
+    switches::kNewChromeUISecurityModel,
     switches::kEnableRemoting,
     switches::kEnableClickToPlay,
     switches::kEnableResourceContentSettings,

chrome/browser/resources/options/options_page.js

@@ -499,8 +499,7 @@ cr.define('options', function() {
           OptionsPage.updateManagedBannerVisibility();
 
           // Recent webkit change no longer allows url change from "chrome://".
-          window.history.pushState({pageName: this.name}, this.title,
-                                   '/' + this.name);
+          window.history.pushState({pageName: this.name}, this.title);
         }
         if (this.tab) {
           this.tab.classList.add('navbar-item-selected');

chrome/common/chrome_switches.cc

@@ -850,6 +850,9 @@ const char kNaClLoaderProcess[]             = "nacl-loader";
 // Causes the Native Client process to display a dialog on launch.
 const char kNaClStartupDialog[]             = "nacl-startup-dialog";
 
+// Enables the new security model for "chrome" URLs.
+const char kNewChromeUISecurityModel[]      = "new-chrome-ui-security-model";
+
 // Disables the default browser check. Useful for UI/browser tests where we
 // want to avoid having the default browser info-bar displayed.
 const char kNoDefaultBrowserCheck[]         = "no-default-browser-check";

chrome/common/chrome_switches.h

@@ -244,6 +244,7 @@ extern const char kNaClDebugPorts[];
 extern const char kNaClBrokerProcess[];
 extern const char kNaClLoaderProcess[];
 extern const char kNaClStartupDialog[];
+extern const char kNewChromeUISecurityModel[];
 extern const char kNoDefaultBrowserCheck[];
 extern const char kNoEvents[];
 extern const char kNoExperiments[];

chrome/renderer/render_thread.cc

@@ -864,7 +864,12 @@ void RenderThread::EnsureWebKitInitialized() {
   // also be unable to script anything but themselves (to help limit the damage
   // that a corrupt chrome: page could cause).
   WebString chrome_ui_scheme(ASCIIToUTF16(chrome::kChromeUIScheme));
-  WebSecurityPolicy::registerURLSchemeAsDisplayIsolated(chrome_ui_scheme);
+  if (command_line.HasSwitch(switches::kNewChromeUISecurityModel)) {
+    WebSecurityPolicy::registerURLSchemeAsDisplayIsolated(chrome_ui_scheme);
+  } else {
+    WebSecurityPolicy::registerURLSchemeAsLocal(chrome_ui_scheme);
+    WebSecurityPolicy::registerURLSchemeAsNoAccess(chrome_ui_scheme);
+  }
 
   // chrome-extension: resources shouldn't trigger insecure content warnings.
   WebString extension_scheme(ASCIIToUTF16(chrome::kExtensionScheme));