Implements strict secure cookies as the default behavior in //net

net/base/network_delegate.h

Index: net/base/network_delegate.h
diff --git a/net/base/network_delegate.h b/net/base/network_delegate.h
index 0fccae11f332e00c9ef435876bc441f73cfc426b..f602f3c26b42f2192ac8f118154c73d14258813d 100644
--- a/net/base/network_delegate.h
+++ b/net/base/network_delegate.h
@@ -107,10 +107,6 @@ class NET_EXPORT NetworkDelegate : public base::NonThreadSafe {
 
   bool AreExperimentalCookieFeaturesEnabled() const;
 
-  // TODO(jww): Remove this once we ship strict secure cookies:
-  // https://crbug.com/546820
-  bool AreStrictSecureCookiesEnabled() const;
-
   bool CancelURLRequestWithPolicyViolatingReferrerHeader(
       const URLRequest& request,
       const GURL& target_url,
@@ -287,13 +283,6 @@ class NET_EXPORT NetworkDelegate : public base::NonThreadSafe {
   // false otherwise.
   virtual bool OnAreExperimentalCookieFeaturesEnabled() const = 0;
 
-  // Returns true if the embedder has enabled experimental features or
-  // specifically strict secure cookies, and false otherwise.
-  //
-  // TODO(jww): Remove this once we ship strict secure cookies:
-  // https://crbug.com/546820.
-  virtual bool OnAreStrictSecureCookiesEnabled() const = 0;
-
   // Called when the |referrer_url| for requesting |target_url| during handling
   // of the |request| is does not comply with the referrer policy (e.g. a
   // secure referrer for an insecure initial target).