Introduces a new MHTML generation parameter specifying different behvaior for cache-control headers.

content/browser/web_contents/web_contents_impl.h

Index: content/browser/web_contents/web_contents_impl.h
diff --git a/content/browser/web_contents/web_contents_impl.h b/content/browser/web_contents/web_contents_impl.h
index 92919be4ea74b72d27e8cfb3f6e86fcb829f79f6..8d92e8f89ed8768cc6356422c42be685c7d9ae26 100644
--- a/content/browser/web_contents/web_contents_impl.h
+++ b/content/browser/web_contents/web_contents_impl.h
@@ -83,6 +83,7 @@ struct AXEventNotificationDetails;
 struct ColorSuggestion;
 struct FaviconURL;
 struct LoadNotificationDetails;
+struct MHTMLGenerationParams;
 struct ResourceRedirectDetails;
 struct ResourceRequestDetails;
 
@@ -355,8 +356,7 @@ class CONTENT_EXPORT WebContentsImpl
   void SaveFrameWithHeaders(const GURL& url,
                             const Referrer& referrer,
                             const std::string& headers) override;
-  void GenerateMHTML(const base::FilePath& file,
-                     bool use_binary_encoding,
+  void GenerateMHTML(const MHTMLGenerationParams& params,
                      const base::Callback<void(int64_t)>& callback) override;
   const std::string& GetContentsMimeType() const override;
   bool WillNotifyDisconnection() const override;