Enable CSP on more WebUI pages

chrome/browser/ui/webui/ntp/new_tab_ui.cc

Index: chrome/browser/ui/webui/ntp/new_tab_ui.cc
diff --git a/chrome/browser/ui/webui/ntp/new_tab_ui.cc b/chrome/browser/ui/webui/ntp/new_tab_ui.cc
index ae162b625f074fa71f7a6b860f21e89decdfb9b9..b51a108015f060ddf5ad057e4d32eb5f9cb652d7 100644
--- a/chrome/browser/ui/webui/ntp/new_tab_ui.cc
+++ b/chrome/browser/ui/webui/ntp/new_tab_ui.cc
@@ -228,8 +228,20 @@ bool NewTabUI::NewTabHTMLSource::ShouldReplaceExistingSource() const {
   return false;
 }
 
-bool NewTabUI::NewTabHTMLSource::ShouldAddContentSecurityPolicy() const {
-  return false;
+std::string NewTabUI::NewTabHTMLSource::GetContentSecurityPolicyScriptSrc()
+    const {
+  // Add 'unsafe-inline' and google resources to script-src.
+  return "script-src chrome://resources 'self' 'unsafe-eval' 'unsafe-inline' "
+      "*.google.com *.gstatic.com;";
+}
+
+std::string NewTabUI::NewTabHTMLSource::GetContentSecurityPolicyObjectSrc()
+    const {
+  // Add style-src, child-src, and img-src.
+  return "object-src 'none';"
+      "style-src 'self' chrome://resources 'unsafe-inline' chrome://theme;"

[Tom Sepez, 2016/05/25 23:07:03]

same here.

[wychen, 2016/05/26 17:54:23]

For consistency, I changed back to frame-src.
In Chromium source, only frame-src is used, but it's deprecated.
Should we switch to child-src?

+      "child-src chrome-search://most-visited;"
+      "img-src chrome-search://thumb chrome-search://thumb2 data:;";
 }
 
 void NewTabUI::NewTabHTMLSource::AddResource(const char* resource,