Fix WebLocalFrame leaks in unit tests.

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 1483 matching lines @@
     runPendingTasks();
     EXPECT_EQ(25, client.longpressX());
     EXPECT_EQ(7, client.longpressY());
 
     m_webViewHelper.reset(); // Explicitly reset to break dependency on locally scoped client.
 }
 
 TEST_F(WebViewTest, ClientTapHandlingNullWebViewClient)
 {
     WebViewImpl* webView = WebViewImpl::create(nullptr);
-    webView->setMainFrame(WebLocalFrame::create(WebTreeScopeType::Document, nullptr));
+    WebLocalFrame* localFrame = WebLocalFrame::create(WebTreeScopeType::Document, nullptr);
+    webView->setMainFrame(localFrame);
     WebGestureEvent event;
     event.type = WebInputEvent::GestureTap;
     event.x = 3;
     event.y = 8;
     EXPECT_FALSE(webView->handleInputEvent(event));
     webView->close();
+    // Explicitly close as the frame as no frame client to do so on frameDetached().
+    localFrame->close();
 }
 
 #if OS(ANDROID)
 TEST_F(WebViewTest, LongPressSelection)
 {
     URLTestHelpers::registerMockedURLFromBaseURL(WebString::fromUTF8(m_baseURL.c_str()), WebString::fromUTF8("longpress_selection.html"));
 
     WebView* webView = m_webViewHelper.initializeAndLoad(m_baseURL + "longpress_selection.html", true);
     webView->resize(WebSize(500, 300));
     webView->layout();
@@ skipping 1502 matching lines @@
     for (size_t i = 0; i < renders.size(); ++i) {
         double docStartTime = frame->domWindow()->document()->loader()->timing().monotonicTimeToZeroBasedDocumentTime(renderPairs[i].startTime) * 1000.0;
         ASSERT_DOUBLE_EQ(docStartTime, renders[i]->startTime());
         double docFinishTime = frame->domWindow()->document()->loader()->timing().monotonicTimeToZeroBasedDocumentTime(renderPairs[i].finishTime) * 1000.0;
         double docDuration = docFinishTime - docStartTime;
         ASSERT_DOUBLE_EQ(docDuration, renders[i]->duration());
     }
 }
 
 } // namespace blink