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 a3da74e315ee715e4a0daf11e9d8a973b6fd41bc..be663dc7f324348d81890823dd826907322fe429 100644
--- a/chrome/renderer/chrome_content_renderer_client.cc
+++ b/chrome/renderer/chrome_content_renderer_client.cc
@@ -283,10 +283,10 @@ void ChromeContentRendererClient::RenderThreadStarted() {
     thread->RegisterExtension(extensions_v8::PlaybackExtension::Get());
   }
 
-  // chrome:, chrome-search:, chrome-devtools:, and chrome-internal: 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:, chrome-distiller: and
+  // chrome-internal: 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);
 
@@ -302,6 +302,13 @@ void ChromeContentRendererClient::RenderThreadStarted() {
   WebString internal_scheme(ASCIIToUTF16(chrome::kChromeInternalScheme));
   WebSecurityPolicy::registerURLSchemeAsDisplayIsolated(internal_scheme);
 
+  if (CommandLine::ForCurrentProcess()->HasSwitch(
+          switches::kEnableDomDistiller)) {
+    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);