Add missing (and remove superfluous) 'explicit' from constructors.

content/browser/worker_host/worker_process_host.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/worker_host/worker_process_host.h"
 
 #include <set>
 #include <string>
 #include <vector>
 
@@ skipping 42 matching lines @@
 #include "webkit/glue/resource_type.h"
 
 namespace content {
 namespace {
 
 // Helper class that we pass to SocketStreamDispatcherHost so that it can find
 // the right net::URLRequestContext for a request.
 class URLRequestContextSelector
     : public ResourceMessageFilter::URLRequestContextSelector {
  public:
-  explicit URLRequestContextSelector(
+  URLRequestContextSelector(
       net::URLRequestContextGetter* url_request_context,
       net::URLRequestContextGetter* media_url_request_context)
       : url_request_context_(url_request_context),
         media_url_request_context_(media_url_request_context) {
   }
   virtual ~URLRequestContextSelector() {}
 
   virtual net::URLRequestContext* GetRequestContext(
       ResourceType::Type resource_type) {
     if (resource_type == ResourceType::MEDIA)
@@ skipping 592 matching lines @@
   return false;
 }
 
 WorkerProcessHost::WorkerInstance::FilterInfo
 WorkerProcessHost::WorkerInstance::GetFilter() const {
   DCHECK(NumFilters() == 1);
   return *filters_.begin();
 }
 
 }  // namespace content