Use a FrameAssociatedLoader when downloading image resources.

content/renderer/fetchers/resource_fetcher_impl.cc

Index: content/renderer/fetchers/resource_fetcher_impl.cc
diff --git a/content/renderer/fetchers/resource_fetcher_impl.cc b/content/renderer/fetchers/resource_fetcher_impl.cc
index c175abcd79aa00fbdeef1dce707ebf78e70a5d75..724956e183bed95db86d642c0df51b4e9af5e55c 100644
--- a/content/renderer/fetchers/resource_fetcher_impl.cc
+++ b/content/renderer/fetchers/resource_fetcher_impl.cc
@@ -24,6 +24,7 @@ using blink::WebHTTPBody;
 using blink::WebSecurityPolicy;
 using blink::WebURLError;
 using blink::WebURLLoader;
+using blink::WebURLLoaderOptions;
 using blink::WebURLRequest;
 using blink::WebURLResponse;
 
@@ -77,6 +78,10 @@ void ResourceFetcherImpl::SetHeader(const std::string& header,
   }
 }
 
+void ResourceFetcherImpl::SetLoaderOptions(const WebURLLoaderOptions& options) {
+  options_ = options;
+}
+
 void ResourceFetcherImpl::Start(WebFrame* frame,
                                 WebURLRequest::RequestContext request_context,
                                 WebURLRequest::FrameType frame_type,
@@ -101,7 +106,7 @@ void ResourceFetcherImpl::Start(WebFrame* frame,
       loader_.reset(blink::Platform::current()->createURLLoader());
       break;
     case FRAME_ASSOCIATED_LOADER:
-      loader_.reset(frame->createAssociatedURLLoader());
+      loader_.reset(frame->createAssociatedURLLoader(options_));
       break;
   }
   loader_->loadAsynchronously(request_, this);