[Android WebView] Update viewport size and scale calculation to match WebView Classic

Source/WebKit/chromium/src/WebSettingsImpl.cpp

 /*
  * Copyright (C) 2009 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 35 matching lines @@
 
 namespace WebKit {
 
 WebSettingsImpl::WebSettingsImpl(Settings* settings)
     : m_settings(settings)
     , m_showFPSCounter(false)
     , m_showPaintRects(false)
     , m_renderVSyncNotificationEnabled(false)
     , m_viewportEnabled(false)
     , m_initializeAtMinimumPageScale(true)
+    , m_useWideViewport(true)
     , m_gestureTapHighlightEnabled(true)
     , m_autoZoomFocusedNodeToLegibleScale(false)
     , m_deferredImageDecodingEnabled(false)
     , m_doubleTapToZoomEnabled(false)
     , m_supportDeprecatedTargetDensityDPI(false)
 {
     ASSERT(settings);
 }
 
 void WebSettingsImpl::setStandardFontFamily(const WebString& font, UScriptCode script)
@@ skipping 184 matching lines @@
 void WebSettingsImpl::setAuthorAndUserStylesEnabled(bool enabled)
 {
     m_settings->setAuthorAndUserStylesEnabled(enabled);
 }
 
 void WebSettingsImpl::setUsesPageCache(bool usesPageCache)
 {
     m_settings->setUsesPageCache(usesPageCache);
 }
 
+void WebSettingsImpl::setUseWideViewport(bool useWideViewport)
+{
+    m_useWideViewport = useWideViewport;
+}
+
 void WebSettingsImpl::setPageCacheSupportsPlugins(bool pageCacheSupportsPlugins)
 {
     m_settings->setPageCacheSupportsPlugins(pageCacheSupportsPlugins);
 }
 
 void WebSettingsImpl::setDoubleTapToZoomEnabled(bool doubleTapToZoomEnabled)
 {
     m_doubleTapToZoomEnabled = doubleTapToZoomEnabled;
 }
 
@@ skipping 414 matching lines @@
 {
     m_settings->setSelectionIncludesAltImageText(enabled);
 }
 
 void WebSettingsImpl::setSmartInsertDeleteEnabled(bool enabled)
 {
     m_settings->setSmartInsertDeleteEnabled(enabled);
 }
 
 } // namespace WebKit