Whitelisting exts and plugins from cross-site document blocking

content/child/site_isolation_policy.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_CHILD_SITE_ISOLATION_POLICY_H_
 #define CONTENT_CHILD_SITE_ISOLATION_POLICY_H_
 
 #include <map>
 #include <utility>
 
@@ skipping 36 matching lines @@
 //   # of responses failed to be sniffed for its MIME type, but blocked by
 //   "X-Content-Type-Options: nosniff" header, and with non-renderable status
 //   code out of SiteIsolation.XSD.[%MIMETYPE].Blocked.
 // SiteIsolation.XSD.[%MIMETYPE].NotBlocked :
 //   # of responses, but not blocked due to failure of mime sniffing.
 // SiteIsolation.XSD.[%MIMETYPE].NotBlocked.MaybeJS :
 //   # of responses that are plausibly sniffed to be JavaScript.
 
 class CONTENT_EXPORT SiteIsolationPolicy {
  public:
+  // Set activation flag for the UMA data collection for this renderer process.
+  static void SetPolicyEnabled(bool enabled);
 
   // Records the bookkeeping data about the HTTP header information for the
   // request identified by |request_id|. The bookkeeping data is used by
   // ShouldBlockResponse. We have to make sure to call OnRequestComplete to free
   // the bookkeeping data.
   static void OnReceivedResponse(int request_id,
                                  GURL& frame_origin,
                                  GURL& response_url,
                                  ResourceType::Type resource_type,
+                                 int origin_pid,
                                  const webkit_glue::ResourceResponseInfo& info);
 
   // Examines the first network packet in case response_url is registered as a
   // cross-site document by DidReceiveResponse().  In case that this response is
   // blocked, it returns an alternative data to be sent to the renderer in
   // |alternative_data|. This records various kinds of UMA data stats. This
   // function is called only if the length of received data is non-zero.
   static bool ShouldBlockResponse(int request_id,
                                   const char* payload,
                                   int length,
@@ skipping 84 matching lines @@
   // Maintain the bookkeeping data between OnReceivedResponse and
   // OnReceivedData. The key is a request id maintained by ResourceDispatcher.
   static RequestIdToMetaDataMap* GetRequestIdToMetaDataMap();
 
   // Maintain the bookkeeping data for OnReceivedData. Blocking decision is made
   // when OnReceivedData is called for the first time for a request, and the
   // decision will remain the same for following data. This map maintains the
   // decision. The key is a request id maintained by ResourceDispatcher.
   static RequestIdToResultMap* GetRequestIdToResultMap();
 
+  // This is false by default, but enables UMA logging and cross-site document
+  // blocking.
+  static bool g_policy_enabled;
+
   // Never needs to be constructed/destructed.
   SiteIsolationPolicy() {}
   ~SiteIsolationPolicy() {}
 
   DISALLOW_COPY_AND_ASSIGN(SiteIsolationPolicy);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_CHILD_SITE_ISOLATION_POLICY_H_