gesture nav: Disable for M28.

content/browser/renderer_host/render_widget_host_impl.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_impl.h"
 
 #include <math.h>
 #include <utility>
 
 #include "base/auto_reset.h"
@@ skipping 191 matching lines @@
   process_->WidgetRestored();
 
   accessibility_mode_ =
       BrowserAccessibilityStateImpl::GetInstance()->accessibility_mode();
 
   for (size_t i = 0; i < g_created_callbacks.Get().size(); i++)
     g_created_callbacks.Get().at(i).Run(this);
 
 #if defined(USE_AURA)
   bool overscroll_enabled = CommandLine::ForCurrentProcess()->
-      GetSwitchValueASCII(switches::kOverscrollHistoryNavigation) != "0";
+      GetSwitchValueASCII(switches::kOverscrollHistoryNavigation) == "1";
   SetOverscrollControllerEnabled(overscroll_enabled);
 #endif
 }
 
 RenderWidgetHostImpl::~RenderWidgetHostImpl() {
   SetView(NULL);
 
   // Clear our current or cached backing store if either remains.
   BackingStoreManager::RemoveBackingStore(this);
 
@@ skipping 2280 matching lines @@
 }
 
 void RenderWidgetHostImpl::DetachDelegate() {
   delegate_ = NULL;
 }
 
 void RenderWidgetHostImpl::FrameSwapped(const ui::LatencyInfo& latency_info) {
 }
 
 }  // namespace content