Use WebViewHelper::LocalMainFrame where possible.

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

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "core/editing/TextFinder.h"
 
 #include "bindings/core/v8/ExceptionState.h"
 #include "core/dom/Document.h"
 #include "core/dom/NodeList.h"
 #include "core/dom/Range.h"
@@ skipping 13 matching lines @@
 #include "testing/gtest/include/gtest/gtest.h"
 
 using blink::testing::RunPendingTasks;
 
 namespace blink {
 
 class TextFinderTest : public ::testing::Test {
  protected:
   TextFinderTest() {
     web_view_helper_.Initialize();
-    WebLocalFrameBase& frame_impl =
-        *web_view_helper_.WebView()->MainFrameImpl();
+    WebLocalFrameBase& frame_impl = *web_view_helper_.LocalMainFrame();
     frame_impl.ViewImpl()->Resize(WebSize(640, 480));
     frame_impl.ViewImpl()->UpdateAllLifecyclePhases();
     document_ = static_cast<Document*>(frame_impl.GetDocument());
     text_finder_ = &frame_impl.EnsureTextFinder();
   }
 
   Document& GetDocument() const;
   TextFinder& GetTextFinder() const;
 
   static WebFloatRect FindInPageRect(Node* start_container,
@@ skipping 572 matching lines @@
   // of the TimeProxyPlatform timer is greater than timeout threshold.
   GetTextFinder().StartScopingStringMatches(identifier, search_pattern,
                                             find_options);
   while (GetTextFinder().ScopingInProgress())
     RunPendingTasks();
 
   EXPECT_EQ(4, GetTextFinder().TotalMatchCount());
 }
 
 }  // namespace blink