Move GetDocument method from WebFrame to WebLocalFrame.

content/renderer/fetchers/associated_resource_fetcher_impl.h

Index: content/renderer/fetchers/associated_resource_fetcher_impl.h
diff --git a/content/renderer/fetchers/associated_resource_fetcher_impl.h b/content/renderer/fetchers/associated_resource_fetcher_impl.h
index 52a910586e232d1b3184bd975e89387ca3435f8c..b1ebb0f4dc058d47dae79cbe6fcb0771150fa742 100644
--- a/content/renderer/fetchers/associated_resource_fetcher_impl.h
+++ b/content/renderer/fetchers/associated_resource_fetcher_impl.h
@@ -20,7 +20,7 @@ class GURL;
 
 namespace blink {
 class WebAssociatedURLLoader;
-class WebFrame;
+class WebLocalFrame;
 enum class WebCachePolicy;
 }
 
@@ -34,7 +34,7 @@ class AssociatedResourceFetcherImpl : public AssociatedResourceFetcher {
   void SetCachePolicy(blink::WebCachePolicy policy) override;
   void SetLoaderOptions(
       const blink::WebAssociatedURLLoaderOptions& options) override;
-  void Start(blink::WebFrame* frame,
+  void Start(blink::WebLocalFrame* frame,
              blink::WebURLRequest::RequestContext request_context,
              blink::WebURLRequest::FrameType frame_type,
              const Callback& callback) override;