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 40850b2521191e3ca69b6434d7213f2d6ea9e233..e6e0e4fea68c152334ba9bdbc66927757fe566c0 100644
--- a/content/public/browser/web_contents.h
+++ b/content/public/browser/web_contents.h
@@ -474,10 +474,18 @@ 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. The headers, if
+  // provided, is used to make a request to the URL rather than using cache.
+  // Format of |headers| is a new line separated list of key value pairs:
+  // "<key1>: <value1>\n<key2>: <value2>".

[Avi (use Gerrit), 2015/03/06 23:55:20]

Are these spaces right? You split on ":", not on ": ".

[Not at Google. Contact bengr, 2015/03/07 00:45:02]

Space doesn't matter since each they are trimmed by the SplitString method. Even
if the trimming didn't happen, this would still work since space is allowed in
headers.

[Avi (use Gerrit), 2015/03/07 00:50:02]

Oh. I didn't know that about SplitString. Thank you for pointing that out.

+  virtual void SaveFrameWithHeaders(const GURL& url,
+                                    const Referrer& referrer,
+                                    const std::string& headers) = 0;
+
   // Generate an MHTML representation of the current page in the given file.
   virtual void GenerateMHTML(
       const base::FilePath& file,