Add referrer & load flag support to BitmapFetcher class.

chrome/browser/bitmap_fetcher.h

Index: chrome/browser/bitmap_fetcher.h
diff --git a/chrome/browser/bitmap_fetcher.h b/chrome/browser/bitmap_fetcher.h
index b468c038b8dc0162a32d1146d7da0fd2c545dfe6..141e7549b3e478df14d7fc1dd7d3655ec263513f 100644
--- a/chrome/browser/bitmap_fetcher.h
+++ b/chrome/browser/bitmap_fetcher.h
@@ -8,10 +8,15 @@
 #include "base/memory/scoped_ptr.h"
 #include "chrome/browser/bitmap_fetcher_delegate.h"
 #include "chrome/browser/image_decoder.h"
+#include "content/public/common/referrer.h"
 #include "net/url_request/url_fetcher_delegate.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "url/gurl.h"
 
+namespace content {
+class BrowserContext;
+}  // namespace content
+
 namespace net {
 class URLFetcher;
 class URLRequestContextGetter;
@@ -35,6 +40,10 @@ class BitmapFetcher : public net::URLFetcherDelegate,
   // already in progress.
   void Start(net::URLRequestContextGetter* request_context);
 
+  void Start(net::URLRequestContextGetter* request_context,
+             const content::Referrer& referrer,
+             int load_flags);
+
   // Methods inherited from URLFetcherDelegate
 
   // This will be called when the URL has been fetched, successfully or not.