Remove explicit keyword from multi-argument constructors

ppapi/tests/test_transport.cc

 // Copyright (c) 2011 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 "ppapi/tests/test_transport.h"
 
 #include <stdlib.h>
 #include <string.h>
 
 #include <list>
@@ skipping 16 matching lines @@
       return result; \
   }
 
 namespace {
 
 const char kTestChannelName[] = "test";
 const int kReadBufferSize = 65536;
 
 class StreamReader {
  public:
-  explicit StreamReader(pp::Transport_Dev* transport,
-                        int expected_size,
-                        pp::CompletionCallback done_callback)
+  StreamReader(pp::Transport_Dev* transport,
+               int expected_size,
+               pp::CompletionCallback done_callback)
       : expected_size_(expected_size),
         done_callback_(done_callback),
         ALLOW_THIS_IN_INITIALIZER_LIST(callback_factory_(this)),
         transport_(transport),
         received_size_(0) {
     Read();
   }
 
   const std::list<std::vector<char> >& received() { return received_; }
   std::list<std::string> errors() { return errors_; }
@@ skipping 261 matching lines @@
   // Close the transport and verify that callback is aborted.
   ASSERT_EQ(transport1_->Close(), PP_OK);
 
   ASSERT_EQ(recv_cb.run_count(), 1);
   ASSERT_EQ(recv_cb.result(), PP_ERROR_ABORTED);
 
   Clean();
 
   PASS();
 }