Add flag to hide scrollbars completely.

content/browser/renderer_host/render_process_host_impl.cc

 // Copyright 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.
 
 // Represents the browser side of the browser <--> renderer communication
 // channel. There will be one RenderProcessHost per renderer process.
 
 #include "content/browser/renderer_host/render_process_host_impl.h"
 
 #include <algorithm>
@@ skipping 1420 matching lines @@
     switches::kEnableBrowserSideNavigation,
     switches::kEnableDisplayList2dCanvas,
     switches::kEnableDistanceFieldText,
     switches::kEnableExperimentalCanvasFeatures,
     switches::kEnableExperimentalWebPlatformFeatures,
     switches::kEnableHeapProfiling,
     switches::kEnableGPUClientLogging,
     switches::kEnableGpuClientTracing,
     switches::kEnableGpuMemoryBufferVideoFrames,
     switches::kEnableGPUServiceLogging,
+    switches::kEnableHiddenScrollbar,
     switches::kEnableIconNtp,
     switches::kEnableLowResTiling,
     switches::kEnableMediaSuspend,
     switches::kEnableInbandTextTracks,
     switches::kEnableLCDText,
     switches::kEnableLogging,
     switches::kEnableMemoryBenchmarking,
     switches::kEnableNetworkInformation,
     switches::kEnableOverlayScrollbar,
     switches::kEnablePinch,
@@ skipping 1311 matching lines @@
   LOG(ERROR) << "Terminating render process for bad Mojo message: " << error;
 
   // The ReceivedBadMessage call below will trigger a DumpWithoutCrashing. Alias
   // enough information here so that we can determine what the bad message was.
   base::debug::Alias(&error);
   bad_message::ReceivedBadMessage(process.get(),
                                   bad_message::RPH_MOJO_PROCESS_ERROR);
 }
 
 }  // namespace content