experiment with -Wimplicit-fallthrough

net/http/http_pipelined_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 "net/http/http_pipelined_host_impl.h"
 
 #include "base/stl_util.h"
 #include "base/values.h"
 #include "net/http/http_pipelined_connection_impl.h"
 #include "net/http/http_pipelined_stream.h"
@@ skipping 137 matching lines @@
 int HttpPipelinedHostImpl::GetPipelineCapacity() const {
   int capacity = 0;
   switch (capability_) {
     case PIPELINE_CAPABLE:
     case PIPELINE_PROBABLY_CAPABLE:
       capacity = max_pipeline_depth();
       break;
 
     case PIPELINE_INCAPABLE:
       CHECK(false);
+      break;
 
     case PIPELINE_UNKNOWN:
       capacity = 1;
       break;
 
     default:
       CHECK(false) << "Unkown pipeline capability: " << capability_;
   }
   return capacity;
 }
@@ skipping 33 matching lines @@
     list_value->Append(pipeline_dict);
   }
   return list_value;
 }
 
 HttpPipelinedHostImpl::PipelineInfo::PipelineInfo()
     : num_successes(0) {
 }
 
 }  // namespace net