Replicate Content-Security-Policy into remote frame proxies.

content/renderer/render_frame_proxy.h

Index: content/renderer/render_frame_proxy.h
diff --git a/content/renderer/render_frame_proxy.h b/content/renderer/render_frame_proxy.h
index 3ccbd9b3cb5e1ebc7027b2be811457584b86d314..9120f1aae2db9dde62ac33be0d15f8d7b6460089 100644
--- a/content/renderer/render_frame_proxy.h
+++ b/content/renderer/render_frame_proxy.h
@@ -34,6 +34,7 @@ class ChildFrameCompositingHelper;
 class RenderFrameImpl;
 class RenderViewImpl;
 class RenderWidget;
+struct ContentSecurityPolicyHeader;
 struct FrameReplicationState;
 
 // When a page's frames are rendered by multiple processes, each renderer has a
@@ -165,6 +166,8 @@ class CONTENT_EXPORT RenderFrameProxy
   void OnDidUpdateSandboxFlags(blink::WebSandboxFlags flags);
   void OnDispatchLoad();
   void OnDidUpdateName(const std::string& name, const std::string& unique_name);
+  void OnAddContentSecurityPolicy(const ContentSecurityPolicyHeader& header);
+  void OnResetContentSecurityPolicy();
   void OnEnforceStrictMixedContentChecking(bool should_enforce);
   void OnDidUpdateOrigin(const url::Origin& origin,
                          bool is_potentially_trustworthy_unique_origin);