Move GetDocument method from WebFrame to WebLocalFrame.

third_party/WebKit/Source/web/tests/VisualViewportTest.cpp

Index: third_party/WebKit/Source/web/tests/VisualViewportTest.cpp
diff --git a/third_party/WebKit/Source/web/tests/VisualViewportTest.cpp b/third_party/WebKit/Source/web/tests/VisualViewportTest.cpp
index 7bc48f4f0c6365122643e36ce37679c446fc6df7..b404b6da61d478de48b9b772c42ddbf12d2f65d6 100644
--- a/third_party/WebKit/Source/web/tests/VisualViewportTest.cpp
+++ b/third_party/WebKit/Source/web/tests/VisualViewportTest.cpp
@@ -4,6 +4,8 @@
 
 #include "core/frame/VisualViewport.h"
 
+#include <memory>
+
 #include "core/dom/Document.h"
 #include "core/frame/BrowserControls.h"
 #include "core/frame/FrameTestHelpers.h"
@@ -1876,7 +1878,7 @@ TEST_P(VisualViewportTest, AccessibilityHitTestWhileZoomedIn) {
   WebViewImpl()->Resize(IntSize(500, 500));
   WebViewImpl()->UpdateAllLifecyclePhases();
 
-  WebDocument web_doc = WebViewImpl()->MainFrame()->GetDocument();
+  WebDocument web_doc = WebViewImpl()->MainFrameImpl()->GetDocument();
   LocalFrameView& frame_view = *WebViewImpl()->MainFrameImpl()->GetFrameView();
 
   WebViewImpl()->SetPageScaleFactor(2);