Reland of Apply Referrer-Policy header when following redirects

net/url_request/url_request_context.h

Index: net/url_request/url_request_context.h
diff --git a/net/url_request/url_request_context.h b/net/url_request/url_request_context.h
index 5eb2884c9c51c404c4cbba14655757f16d78955c..40b2486e68f02f03e0921b1fbd5c2e3e1d5db3a0 100644
--- a/net/url_request/url_request_context.h
+++ b/net/url_request/url_request_context.h
@@ -230,6 +230,14 @@ class NET_EXPORT URLRequestContext
 
   bool enable_brotli() const { return enable_brotli_; }
 
+  void set_enable_referrer_policy_header(bool enable_referrer_policy_header) {
+    enable_referrer_policy_header_ = enable_referrer_policy_header;
+  }
+
+  bool enable_referrer_policy_header() const {
+    return enable_referrer_policy_header_;
+  }
+
  private:
   // ---------------------------------------------------------------------------
   // Important: When adding any new members below, consider whether they need to
@@ -269,6 +277,11 @@ class NET_EXPORT URLRequestContext
   // Enables Brotli Content-Encoding support.
   bool enable_brotli_;
 
+  // Enables parsing and applying the Referrer-Policy header when
+  // following redirects. TODO(estark): remove this flag once
+  // Referrer-Policy ships (https://crbug.com/619228).
+  bool enable_referrer_policy_header_;
+
   DISALLOW_COPY_AND_ASSIGN(URLRequestContext);
 };