Implement ContentSecurityPolicy on the browser-side.

content/browser/frame_host/render_frame_host_impl.h

Index: content/browser/frame_host/render_frame_host_impl.h
diff --git a/content/browser/frame_host/render_frame_host_impl.h b/content/browser/frame_host/render_frame_host_impl.h
index eb809c414d4fa0186b1a930643f4e0f6560174de..b0987db318f258f2cacb46655f5d42acb736642f 100644
--- a/content/browser/frame_host/render_frame_host_impl.h
+++ b/content/browser/frame_host/render_frame_host_impl.h
@@ -30,6 +30,7 @@
 #include "content/common/accessibility_mode_enums.h"
 #include "content/common/ax_content_node_data.h"
 #include "content/common/content_export.h"
+#include "content/common/content_security_policy/csp_policy.h"
 #include "content/common/download/mhtml_save_status.h"
 #include "content/common/frame.mojom.h"
 #include "content/common/frame_message_enums.h"
@@ -702,7 +703,8 @@ class CONTENT_EXPORT RenderFrameHostImpl
   void OnDidChangeOpener(int32_t opener_routing_id);
   void OnDidChangeName(const std::string& name, const std::string& unique_name);
   void OnDidSetFeaturePolicyHeader(const ParsedFeaturePolicy& parsed_header);
-  void OnDidAddContentSecurityPolicy(const ContentSecurityPolicyHeader& header);
+  void OnDidAddContentSecurityPolicy(const ContentSecurityPolicyHeader& header,
+                                     const CSPPolicy& policy);
   void OnEnforceInsecureRequestPolicy(blink::WebInsecureRequestPolicy policy);
   void OnUpdateToUniqueOrigin(bool is_potentially_trustworthy_unique_origin);
   void OnDidChangeSandboxFlags(int32_t frame_routing_id,