Move GetDocument method from WebFrame to WebLocalFrame.

chrome/browser/web_applications/web_app_unittest.cc

Index: chrome/browser/web_applications/web_app_unittest.cc
diff --git a/chrome/browser/web_applications/web_app_unittest.cc b/chrome/browser/web_applications/web_app_unittest.cc
index fb5a1cbeb2642f9dfab262c4e7e28430eba72be4..e42e5f4f649bfafa627e4c4c38efa943e8ea8fcf 100644
--- a/chrome/browser/web_applications/web_app_unittest.cc
+++ b/chrome/browser/web_applications/web_app_unittest.cc
@@ -21,8 +21,6 @@
 #include "chrome/browser/favicon/favicon_utils.h"
 #endif
 
-using content::RenderViewHostTester;
-
 class WebApplicationTest : public ChromeRenderViewHostTestHarness {
  protected:
   void SetUp() override {
@@ -47,8 +45,7 @@ TEST_F(WebApplicationTest, GetShortcutInfoForTab) {
   content::RenderFrameHostTester::For(main_rfh())
       ->InitializeRenderFrameIfNeeded();
   content::RenderFrameHostTester::TestOnMessageReceived(
-      rvh()->GetMainFrame(),
-      ChromeFrameHostMsg_DidGetWebApplicationInfo(0, web_app_info));
+      main_rfh(), ChromeFrameHostMsg_DidGetWebApplicationInfo(0, web_app_info));
   std::unique_ptr<web_app::ShortcutInfo> info =
       web_app::GetShortcutInfoForTab(web_contents());