Enable CSP on more WebUI pages

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

Index: chrome/browser/ui/webui/ntp/new_tab_ui.h
diff --git a/chrome/browser/ui/webui/ntp/new_tab_ui.h b/chrome/browser/ui/webui/ntp/new_tab_ui.h
index 9124574be5ecdd2d144ce211f89b4d440f15c84b..79db8c3dbf7dddae0b2e5e506ed43ab9d2f50a54 100644
--- a/chrome/browser/ui/webui/ntp/new_tab_ui.h
+++ b/chrome/browser/ui/webui/ntp/new_tab_ui.h
@@ -68,7 +68,10 @@ class NewTabUI : public content::WebUIController {
         const content::URLDataSource::GotDataCallback& callback) override;
     std::string GetMimeType(const std::string&) const override;
     bool ShouldReplaceExistingSource() const override;
-    bool ShouldAddContentSecurityPolicy() const override;
+    std::string GetContentSecurityPolicyScriptSrc() const override;
+    std::string GetContentSecurityPolicyStyleSrc() const override;
+    std::string GetContentSecurityPolicyImgSrc() const override;
+    std::string GetContentSecurityPolicyFrameSrc() const override;
 
     // Adds |resource| to the source. |resource_id| is resource id or 0,
     // which means return empty data set. |mime_type| is mime type of the