Request uncompressed images from data reduction proxy when saving.

content/public/browser/web_contents.h

Index: content/public/browser/web_contents.h
diff --git a/content/public/browser/web_contents.h b/content/public/browser/web_contents.h
index 493abd8f0d4b297b307c45e5a0890ffe5a806b41..77d19f50994a5a070f6d52dc0fafbaf66b41850f 100644
--- a/content/public/browser/web_contents.h
+++ b/content/public/browser/web_contents.h
@@ -470,10 +470,16 @@ class WebContents : public PageNavigator,
                         const base::FilePath& dir_path,
                         SavePageType save_type) = 0;
 
-  // Saves the given frame's URL to the local filesystem..
+  // Saves the given frame's URL to the local filesystem.
   virtual void SaveFrame(const GURL& url,
                          const Referrer& referrer) = 0;
 
+  // Saves the given frame's URL to the local filesystem using the header
+  // provided to make the request.

[Avi (use Gerrit), 2015/03/05 20:35:39]

Document the format of the "headers" string.

[Not at Google. Contact bengr, 2015/03/06 22:23:48]

Good call. Done.

+  virtual void SaveFrameWithHeader(const GURL& url,

[Avi (use Gerrit), 2015/03/05 20:35:39]

SaveFrameWithHeaders

[Not at Google. Contact bengr, 2015/03/06 22:23:48]

Done.

+                                   const Referrer& referrer,
+                                   const std::string& header) = 0;

[Avi (use Gerrit), 2015/03/05 20:35:39]

There may be more than one header in this parameter; call it "headers".

[Not at Google. Contact bengr, 2015/03/06 22:23:48]

Done.

+
   // Generate an MHTML representation of the current page in the given file.
   virtual void GenerateMHTML(
       const base::FilePath& file,