OOP PDF: Change the save toolbar button to match the save menu behavior.

content/public/browser/web_contents_delegate.h

Index: content/public/browser/web_contents_delegate.h
diff --git a/content/public/browser/web_contents_delegate.h b/content/public/browser/web_contents_delegate.h
index bcd5caf609b2664c386a9aa47c463951077666ec..669c4a01ee63bb9355eae043405815f052961800 100644
--- a/content/public/browser/web_contents_delegate.h
+++ b/content/public/browser/web_contents_delegate.h
@@ -487,6 +487,10 @@ class CONTENT_EXPORT WebContentsDelegate {
   // Returns true if the WebContents is never visible.
   virtual bool IsNeverVisible(WebContents* web_contents);
 
+  // Called in response to a request to save a frame. If this returns true, the
+  // default behavior is suppressed.
+  virtual bool SaveFrame(const GURL& url, const Referrer& referrer);
+
  protected:
   virtual ~WebContentsDelegate();