Expand GPU rasterization trigger for Finch experiment

Source/web/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 36 matching lines @@
     , m_inspectorController(inspectorController)
     , m_showFPSCounter(false)
     , m_showPaintRects(false)
     , m_renderVSyncNotificationEnabled(false)
     , m_gestureTapHighlightEnabled(true)
     , m_autoZoomFocusedNodeToLegibleScale(false)
     , m_deferredImageDecodingEnabled(false)
     , m_doubleTapToZoomEnabled(false)
     , m_supportDeprecatedTargetDensityDPI(false)
     , m_shrinksViewportContentToFit(false)
+    , m_useExpandedHeuristicsForGpuRasterization(false)
     , m_viewportMetaLayoutSizeQuirk(false)
     , m_viewportMetaNonUserScalableQuirk(false)
     , m_clobberUserAgentInitialScaleQuirk(false)
     , m_mainFrameResizesAreOrientationChanges(false)
 {
     ASSERT(settings);
 }
 
 void WebSettingsImpl::setStandardFontFamily(const WebString& font, UScriptCode script)
 {
@@ skipping 215 matching lines @@
 void WebSettingsImpl::setJavaEnabled(bool enabled)
 {
     m_settings->setJavaEnabled(enabled);
 }
 
 void WebSettingsImpl::setAllowScriptsToCloseWindows(bool allow)
 {
     m_settings->setAllowScriptsToCloseWindows(allow);
 }
 
+void WebSettingsImpl::setUseExpandedHeuristicsForGpuRasterization(bool useExpandedHeuristics)
+{
+    m_useExpandedHeuristicsForGpuRasterization = useExpandedHeuristics;
+}
+
 void WebSettingsImpl::setUseLegacyBackgroundSizeShorthandBehavior(bool useLegacyBackgroundSizeShorthandBehavior)
 {
     m_settings->setUseLegacyBackgroundSizeShorthandBehavior(useLegacyBackgroundSizeShorthandBehavior);
 }
 
 void WebSettingsImpl::setWideViewportQuirkEnabled(bool wideViewportQuirkEnabled)
 {
     m_settings->setWideViewportQuirkEnabled(wideViewportQuirkEnabled);
 }
 
@@ skipping 398 matching lines @@
 {
     m_settings->setUseSolidColorScrollbars(enabled);
 }
 
 void WebSettingsImpl::setMainFrameResizesAreOrientationChanges(bool enabled)
 {
     m_mainFrameResizesAreOrientationChanges = enabled;
 }
 
 } // namespace blink