Remove lazy layout preference plumbing

This is dead code as the Blink bits were removed in
http://src.chromium.org/viewvc/blink?view=revision&revision=156126

Review URL: https://codereview.chromium.org/326823003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@276417 0039d316-1c4b-4281-b951-d872f2087c98

content/browser/renderer_host/render_view_host_impl.cc

@@ -412,8 +412,6 @@ WebPreferences RenderViewHostImpl::GetWebkitPrefs(const GURL& url) {
       !command_line.HasSwitch(switches::kDisableDeferredFilters);
   prefs.container_culling_enabled =
       command_line.HasSwitch(switches::kEnableContainerCulling);
-  prefs.lazy_layout_enabled =
-      command_line.HasSwitch(switches::kEnableExperimentalWebPlatformFeatures);
   prefs.region_based_columns_enabled =
       command_line.HasSwitch(switches::kEnableRegionBasedColumns);
 

content/public/common/common_param_traits_macros.h

@@ -157,7 +157,6 @@ IPC_STRUCT_TRAITS_BEGIN(WebPreferences)
   IPC_STRUCT_TRAITS_MEMBER(enable_scroll_animator)
   IPC_STRUCT_TRAITS_MEMBER(password_echo_enabled)
   IPC_STRUCT_TRAITS_MEMBER(should_clear_document_background)
-  IPC_STRUCT_TRAITS_MEMBER(lazy_layout_enabled)
   IPC_STRUCT_TRAITS_MEMBER(region_based_columns_enabled)
   IPC_STRUCT_TRAITS_MEMBER(touch_enabled)
   IPC_STRUCT_TRAITS_MEMBER(device_supports_touch)

content/renderer/web_preferences.cc

@@ -258,7 +258,6 @@ void ApplyWebPreferences(const WebPreferences& prefs, WebView* web_view) {
 
   settings->setRegionBasedColumnsEnabled(prefs.region_based_columns_enabled);
 
-  WebRuntimeFeatures::enableLazyLayout(prefs.lazy_layout_enabled);
   WebRuntimeFeatures::enableTouch(prefs.touch_enabled);
   settings->setMaxTouchPoints(prefs.pointer_events_max_touch_points);
   settings->setDeviceSupportsTouch(prefs.device_supports_touch);

webkit/common/webpreferences.cc

@@ -75,7 +75,6 @@ WebPreferences::WebPreferences()
       should_print_backgrounds(false),
       should_clear_document_background(true),
       enable_scroll_animator(false),
-      lazy_layout_enabled(false),
       region_based_columns_enabled(false),
       touch_enabled(false),
       device_supports_touch(false),

webkit/common/webpreferences.h

@@ -125,7 +125,6 @@ struct WEBKIT_COMMON_EXPORT WebPreferences {
   bool should_clear_document_background;
   bool enable_scroll_animator;
   bool css_variables_enabled;
-  bool lazy_layout_enabled;
   bool region_based_columns_enabled;
   bool touch_enabled;
   bool device_supports_touch;