Add the scheme chrome-distiller:// and hook up data source.

chrome/renderer/chrome_content_renderer_client.cc

Index: chrome/renderer/chrome_content_renderer_client.cc
diff --git a/chrome/renderer/chrome_content_renderer_client.cc b/chrome/renderer/chrome_content_renderer_client.cc
index 3e000ac0afb3ede2080e08cc572d53be38f01e98..5751a0dd1a4eec4f742356745fa7b5a4921ca78d 100644
--- a/chrome/renderer/chrome_content_renderer_client.cc
+++ b/chrome/renderer/chrome_content_renderer_client.cc
@@ -294,9 +294,10 @@ void ChromeContentRendererClient::RenderThreadStarted() {
   if (switches::IsNewProfileManagement())
     thread->RegisterExtension(extensions_v8::PrincipalsExtension::Get());
 
-  // chrome:, chrome-search:, and chrome-devtools: pages should not be
-  // accessible by normal content, and should also be unable to script anything
-  // but themselves (to help limit the damage that a corrupt page could cause).
+  // chrome:, chrome-search:, chrome-devtools:, and chrome-distiller: pages
+  // should not be accessible by normal content, and should also be unable to
+  // script anything but themselves (to help limit the damage that a corrupt
+  // page could cause).
   WebString chrome_ui_scheme(ASCIIToUTF16(chrome::kChromeUIScheme));
   WebSecurityPolicy::registerURLSchemeAsDisplayIsolated(chrome_ui_scheme);
 
@@ -309,6 +310,10 @@ void ChromeContentRendererClient::RenderThreadStarted() {
   WebString dev_tools_scheme(ASCIIToUTF16(chrome::kChromeDevToolsScheme));
   WebSecurityPolicy::registerURLSchemeAsDisplayIsolated(dev_tools_scheme);
 
+  WebString dom_distiller_scheme(ASCIIToUTF16(chrome::kDomDistillerScheme));
+  // TODO(nyquist): Add test to ensure this happens when the flag is set.
+  WebSecurityPolicy::registerURLSchemeAsDisplayIsolated(dom_distiller_scheme);
+
 #if defined(OS_CHROMEOS)
   WebString drive_scheme(ASCIIToUTF16(chrome::kDriveScheme));
   WebSecurityPolicy::registerURLSchemeAsLocal(drive_scheme);