Do not fallback to FocusedOrMainFrame() in FocusedLocalFrameInWidget()

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

 /*
  * Copyright (C) 2011, 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 2306 matching lines @@
   EXPECT_EQ("testword", std::string(frame->SelectionAsText().Utf8().data()));
 }
 
 TEST_P(WebViewTest, FinishComposingTextDoesNotDismissHandles) {
   RegisterMockedHttpURLLoad("longpress_selection.html");
 
   WebViewBase* web_view = web_view_helper_.InitializeAndLoad(
       base_url_ + "longpress_selection.html", true);
   web_view->Resize(WebSize(500, 300));
   web_view->UpdateAllLifecyclePhases();
+  web_view->SetInitialFocus(false);

[EhsanK, 2017/05/30 22:39:22]

Without it line 2332 returns nullptr after the change. We used to fallback to
main frame before but now that we don't, we need main frame to be focused here.

   RunPendingTasks();
 
   WebString target = WebString::FromUTF8("target");
   WebLocalFrameBase* frame = web_view->MainFrameImpl();
   WebInputMethodController* active_input_method_controller =
       frame->FrameWidget()->GetActiveWebInputMethodController();
   EXPECT_TRUE(TapElementById(WebInputEvent::kGestureTap, target));
   WebVector<WebCompositionUnderline> empty_underlines;
   frame->SetEditableSelectionOffsets(8, 8);
   EXPECT_TRUE(active_input_method_controller->SetComposition(
@@ skipping 2001 matching lines @@
   EXPECT_FALSE(frame_view->VisualViewportSuppliesScrollbars());
   if (RuntimeEnabledFeatures::rootLayerScrollingEnabled()) {
     EXPECT_NE(nullptr,
               frame_view->LayoutViewportScrollableArea()->VerticalScrollbar());
   } else {
     EXPECT_NE(nullptr, frame_view->VerticalScrollbar());
   }
 }
 
 }  // namespace blink