disable link disambiguation by default

content/browser/renderer_host/render_process_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.
 
 // 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 1119 matching lines @@
     switches::kEnableCredentialManagerAPI,
     switches::kEnableDeferredImageDecoding,
     switches::kEnableDisplayList2dCanvas,
     switches::kEnableDistanceFieldText,
     switches::kEnableEncryptedMedia,
     switches::kEnableExperimentalCanvasFeatures,
     switches::kEnableExperimentalWebPlatformFeatures,
     switches::kEnableGPUClientLogging,
     switches::kEnableGpuClientTracing,
     switches::kEnableGPUServiceLogging,
+    switches::kEnableLinkDisambiguationPopup,
     switches::kEnableLowResTiling,
     switches::kEnableInbandTextTracks,
     switches::kEnableLCDText,
     switches::kEnableLayerSquashing,
     switches::kEnableLogging,
     switches::kEnableMemoryBenchmarking,
     switches::kEnableNetworkInformation,
     switches::kEnableOneCopy,
     switches::kEnableOverlayFullscreenVideo,
     switches::kEnableOverlayScrollbar,
@@ skipping 1097 matching lines @@
 
 void RenderProcessHostImpl::DecrementWorkerRefCount() {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
   DCHECK_GT(worker_ref_count_, 0);
   --worker_ref_count_;
   if (worker_ref_count_ == 0)
     Cleanup();
 }
 
 }  // namespace content