Remove options to disable deadline scheduling

content/browser/renderer_host/render_widget_host_view_aura.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/renderer_host/render_widget_host_view_aura.h"
 
 #include "base/auto_reset.h"
 #include "base/basictypes.h"
 #include "base/bind.h"
 #include "base/callback_helpers.h"
@@ skipping 3207 matching lines @@
   // A compositor lock that is part of a resize lock timed out. We
   // should display a renderer frame.
   if (!compositor->IsLocked() && can_lock_compositor_ == YES_DID_LOCK) {
     can_lock_compositor_ = NO_PENDING_RENDERER_FRAME;
   }
 }
 
 void RenderWidgetHostViewAura::OnUpdateVSyncParameters(
     base::TimeTicks timebase,
     base::TimeDelta interval) {
-  if (IsShowing()) {
-    if (IsDeadlineSchedulingEnabled()) {
-      // The deadline scheduler has logic to stagger the draws of the
-      // Renderer and Browser built-in, so send it an accurate timebase.
-      host_->UpdateVSyncParameters(timebase, interval);
-    } else if (!last_draw_ended_.is_null()) {
-      // For the non-deadline scheduler, we send the Renderer an offset
-      // vsync timebase to avoid its draws racing the Browser's draws.
-      host_->UpdateVSyncParameters(last_draw_ended_, interval);
-    }
-  }
+  if (IsShowing())
+    host_->UpdateVSyncParameters(timebase, interval);
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // RenderWidgetHostViewAura, BrowserAccessibilityDelegate implementation:
 
 void RenderWidgetHostViewAura::SetAccessibilityFocus(int acc_obj_id) {
   if (!host_)
     return;
 
   host_->AccessibilitySetFocus(acc_obj_id);
@@ skipping 352 matching lines @@
     RenderWidgetHost* widget) {
   return new RenderWidgetHostViewAura(widget);
 }
 
 // static
 void RenderWidgetHostViewPort::GetDefaultScreenInfo(WebScreenInfo* results) {
   GetScreenInfoForWindow(results, NULL);
 }
 
 }  // namespace content