PlzNavigate: Enforce 'frame-src' CSP on the browser.

third_party/WebKit/public/web/WebFrameClient.h

Index: third_party/WebKit/public/web/WebFrameClient.h
diff --git a/third_party/WebKit/public/web/WebFrameClient.h b/third_party/WebKit/public/web/WebFrameClient.h
index f8b55747788d6a518330072cd51bff4854653ffa..05d865b88fc2bef16b606dd11bd6955ec224f2c4 100644
--- a/third_party/WebKit/public/web/WebFrameClient.h
+++ b/third_party/WebKit/public/web/WebFrameClient.h
@@ -300,6 +300,7 @@ class BLINK_EXPORT WebFrameClient {
     bool isClientRedirect;
     WebFormElement form;
     bool isCacheDisabled;
+    bool shouldBypassMainWorldCSP;

[dcheng, 2017/03/16 08:34:47]

I would encourage the use of an enum for this (and similarly in the content
layer): having so many bool parameters can be a little unreadable.

[arthursonzogni, 2017/03/16 15:47:36]

By seeing all of these booleans, I thought that I had to do the same, that it
was a sort of implicit coding style rule that applies to content/ and that is
different from the blink's one.
Thanks for the information.

 
     NavigationPolicyInfo(WebURLRequest& urlRequest)
         : extraData(nullptr),
@@ -309,7 +310,8 @@ class BLINK_EXPORT WebFrameClient {
           replacesCurrentHistoryItem(false),
           isHistoryNavigationInNewChildFrame(false),
           isClientRedirect(false),
-          isCacheDisabled(false) {}
+          isCacheDisabled(false),
+          shouldBypassMainWorldCSP(false) {}
   };
 
   virtual WebNavigationPolicy decidePolicyForNavigation(