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

base/debug/trace_event.h

 // 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.
 
 // This header is designed to give you trace_event macros without specifying
 // how the events actually get collected and stored. If you need to expose trace
 // event to some other universe, you can copy-and-paste this file,
 // implement the TRACE_EVENT_API macros, and do any other necessary fixup for
 // the target platform. The end result is that multiple libraries can funnel
 // events through to a shared trace event collector.
@@ skipping 701 matching lines @@
          : data_(static_cast<unsigned long long>(id)) {}
      explicit ForceMangle(signed char id)
          : data_(static_cast<unsigned long long>(id)) {}
 
      unsigned long long data() const { return data_; }
 
     private:
      unsigned long long data_;
   };
 
-  explicit TraceID(const void* id, unsigned char* flags)
+  TraceID(const void* id, unsigned char* flags)
       : data_(static_cast<unsigned long long>(
               reinterpret_cast<unsigned long>(id))) {
     *flags |= TRACE_EVENT_FLAG_MANGLE_ID;
   }
-  explicit TraceID(ForceMangle id, unsigned char* flags) : data_(id.data()) {
+  TraceID(ForceMangle id, unsigned char* flags) : data_(id.data()) {
     *flags |= TRACE_EVENT_FLAG_MANGLE_ID;
   }
-  explicit TraceID(unsigned long long id, unsigned char* flags)
+  TraceID(unsigned long long id, unsigned char* flags)
       : data_(id) { (void)flags; }
-  explicit TraceID(unsigned long id, unsigned char* flags)
+  TraceID(unsigned long id, unsigned char* flags)
       : data_(id) { (void)flags; }
-  explicit TraceID(unsigned int id, unsigned char* flags)
+  TraceID(unsigned int id, unsigned char* flags)
       : data_(id) { (void)flags; }
-  explicit TraceID(unsigned short id, unsigned char* flags)
+  TraceID(unsigned short id, unsigned char* flags)
       : data_(id) { (void)flags; }
-  explicit TraceID(unsigned char id, unsigned char* flags)
+  TraceID(unsigned char id, unsigned char* flags)
       : data_(id) { (void)flags; }
-  explicit TraceID(long long id, unsigned char* flags)
+  TraceID(long long id, unsigned char* flags)
       : data_(static_cast<unsigned long long>(id)) { (void)flags; }
-  explicit TraceID(long id, unsigned char* flags)
+  TraceID(long id, unsigned char* flags)
       : data_(static_cast<unsigned long long>(id)) { (void)flags; }
-  explicit TraceID(int id, unsigned char* flags)
+  TraceID(int id, unsigned char* flags)
       : data_(static_cast<unsigned long long>(id)) { (void)flags; }
-  explicit TraceID(short id, unsigned char* flags)
+  TraceID(short id, unsigned char* flags)
       : data_(static_cast<unsigned long long>(id)) { (void)flags; }
-  explicit TraceID(signed char id, unsigned char* flags)
+  TraceID(signed char id, unsigned char* flags)
       : data_(static_cast<unsigned long long>(id)) { (void)flags; }
 
   unsigned long long data() const { return data_; }
 
  private:
   unsigned long long data_;
 };
 
 // Simple union to store various types as unsigned long long.
 union TraceValueUnion {
@@ skipping 154 matching lines @@
     const char* name;
   };
   Data* p_data_;
   Data data_;
 };
 
 
 }  // namespace trace_event_internal
 
 #endif  // BASE_DEBUG_TRACE_EVENT_H_