Fix tests to be compatible with Android scale initialization.

Source/web/tests/TouchActionTest.cpp

 /*
  * Copyright (C) 2013 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 150 matching lines @@
 
     m_webViewHelper.reset(); // Explicitly reset to break dependency on locally scoped client.
 }
 
 WebView* TouchActionTest::setupTest(std::string file, TouchActionTrackingWebViewClient& client)
 {
     URLTestHelpers::registerMockedURLFromBaseURL(WebString::fromUTF8(m_baseURL), WebString::fromUTF8(file));
     // Note that JavaScript must be enabled for shadow DOM tests.
     WebView* webView = m_webViewHelper.initializeAndLoad(m_baseURL + file, true, 0, &client);
 
+    // Lock page scale factor to avoid zooming out to contents size.
+    m_webViewHelper.webView()->setPageScaleFactorLimits(1, 1);
+
     // Set size to enable hit testing, and avoid line wrapping for consistency with browser.
     webView->resize(WebSize(800, 1200));
 
     // Scroll to verify the code properly transforms windows to client co-ords.
     const int kScrollOffset = 100;
     RefPtr<WebCore::Document> document = static_cast<PassRefPtr<WebCore::Document> >(webView->mainFrame()->document());
     document->frame()->view()->setScrollOffset(WebCore::IntPoint(0, kScrollOffset));
 
     return webView;
 }
@@ skipping 143 matching lines @@
 {
     runShadowDOMTest("touch-action-shadow-dom.html");
 }
 
 TEST_F(TouchActionTest, Pan)
 {
     runTouchActionTest("touch-action-pan.html");
 }
 
 }