Enable pinch & scrollbars by default for CrOS.

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/bind.h"
 #include "base/bind_helpers.h"
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
@@ skipping 242 matching lines @@
   results->availableRect = display.work_area();
   // TODO(derat|oshima): Don't hardcode this. Get this from display object.
   results->depth = 24;
   results->depthPerComponent = 8;
   results->deviceScaleFactor = display.device_scale_factor();
 }
 
 bool ShouldSendPinchGesture() {
   static bool pinch_allowed =
       CommandLine::ForCurrentProcess()->HasSwitch(switches::kEnableViewport) ||
+#if defined(OS_CHROMEOS)
+      !CommandLine::ForCurrentProcess()->HasSwitch(switches::kDisablePinch);
+#else
       CommandLine::ForCurrentProcess()->HasSwitch(switches::kEnablePinch);
+#endif
   return pinch_allowed;
 }
 
 bool PointerEventActivates(const ui::Event& event) {
   if (event.type() == ui::ET_MOUSE_PRESSED)
     return true;
 
   if (event.type() == ui::ET_GESTURE_BEGIN) {
     const ui::GestureEvent& gesture =
         static_cast<const ui::GestureEvent&>(event);
@@ skipping 2210 matching lines @@
     RenderWidgetHost* widget) {
   return new RenderWidgetHostViewAura(widget);
 }
 
 // static
 void RenderWidgetHostViewPort::GetDefaultScreenInfo(WebScreenInfo* results) {
   GetScreenInfoForWindow(results, NULL);
 }
 
 }  // namespace content