Enable CSP on more WebUI pages

chrome/browser/ui/webui/system_info_ui.cc

Index: chrome/browser/ui/webui/system_info_ui.cc
diff --git a/chrome/browser/ui/webui/system_info_ui.cc b/chrome/browser/ui/webui/system_info_ui.cc
index 7aa85064f3ed80f6e9d09f6b65feaa2129992668..11631235af9b81e29c735dca1d50890b0a5e56b0 100644
--- a/chrome/browser/ui/webui/system_info_ui.cc
+++ b/chrome/browser/ui/webui/system_info_ui.cc
@@ -59,7 +59,15 @@ class SystemInfoUIHTMLSource : public content::URLDataSource{
   std::string GetMimeType(const std::string&) const override {
     return "text/html";
   }
-  bool ShouldAddContentSecurityPolicy() const override { return false; }
+  std::string GetContentSecurityPolicyScriptSrc() const override {
+    // 'unsafe-inline' is added to script-src.
+    return "script-src 'self' chrome://resources 'unsafe-eval' "
+        "'unsafe-inline';";
+  }
+
+  std::string GetContentSecurityPolicyStyleSrc() const override {
+    return "style-src 'self' chrome://resources 'unsafe-inline';";
+  }
 
  private:
   ~SystemInfoUIHTMLSource() override {}