Adds scroll position/scale emulation to DevTools.

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 1058 matching lines @@
 
 TEST_F(WebViewTest, ExitingDeviceEmulationResetsPageScale)
 {
     URLTestHelpers::registerMockedURLFromBaseURL(WebString::fromUTF8(m_baseURL.c_str()), WebString::fromUTF8("200-by-300.html"));
     WebViewImpl* webViewImpl = m_webViewHelper.initializeAndLoad(m_baseURL + "200-by-300.html");
     webViewImpl->resize(WebSize(200, 300));
 
     float pageScaleExpected = webViewImpl->pageScaleFactor();
 
     WebDeviceEmulationParams params;
-    params.screenPosition = WebDeviceEmulationParams::Desktop;
+    params.screenPosition = WebDeviceEmulationParams::Mobile;
     params.deviceScaleFactor = 0;
     params.fitToView = false;
     params.offset = WebFloatPoint();
     params.scale = 1;
 
     webViewImpl->enableDeviceEmulation(params);
 
     webViewImpl->setPageScaleFactor(2);
 
     webViewImpl->disableDeviceEmulation();
@@ skipping 2042 matching lines @@
     frame->setAutofillClient(&client);
     webView->setInitialFocus(false);
 
     EXPECT_TRUE(webView->confirmComposition(WebString::fromUTF8(std::string("hello").c_str())));
     EXPECT_EQ(1, client.textChangesFromUserGesture());
     EXPECT_FALSE(UserGestureIndicator::processingUserGesture());
     frame->setAutofillClient(0);
 }
 
 } // namespace blink