Move thread from test/ to util/thread/.

util/thread/thread.h

 // Copyright 2015 The Crashpad Authors. All rights reserved.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
 //
 //     http://www.apache.org/licenses/LICENSE-2.0
 //
 // Unless required by applicable law or agreed to in writing, software
 // distributed under the License is distributed on an "AS IS" BASIS,
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef CRASHPAD_TEST_THREAD_H_
-#define CRASHPAD_TEST_THREAD_H_
+#ifndef CRASHPAD_UTIL_THREAD_THREAD_H_
+#define CRASHPAD_UTIL_THREAD_THREAD_H_
 
 #include "base/basictypes.h"
 #include "build/build_config.h"
 
 #if defined(OS_POSIX)
 #include <pthread.h>
 #elif defined(OS_WIN)
 #include <windows.h>
 #endif  // OS_POSIX
 
 namespace crashpad {
-namespace test {
 
-//! \brief Basic thread abstraction for testing. Users should derive from this
+//! \brief Basic thread abstraction. Users should derive from this
 //!     class and implement ThreadMain().
 class Thread {
  public:
   Thread();
   virtual ~Thread();
 
   //! \brief Create a platform thread, and run ThreadMain() on that thread. Must
   //!     be paired with a call to Join().
   void Start();
 
   //! \brief Block until ThreadMain() exits. This may be called from any thread.
   //!     Must paired with a call to Start().
   void Join();
 
  private:
-  //! \brief The entry point to be overridden to implement the test-specific
-  //!     functionality.
+  //! \brief The thread entry point to be implemented by the subclass.
   virtual void ThreadMain() = 0;
 
   static
 #if defined(OS_POSIX)
       void*
 #elif defined(OS_WIN)
       DWORD WINAPI
 #endif  // OS_POSIX
       ThreadEntryThunk(void* argument);
 
 #if defined(OS_POSIX)
   pthread_t platform_thread_;
 #elif defined(OS_WIN)
   HANDLE platform_thread_;
 #endif
 
   DISALLOW_COPY_AND_ASSIGN(Thread);
 };
 
-}  // namespace test
 }  // namespace crashpad
 
-#endif  // CRASHPAD_TEST_THREAD_H_
+#endif  // CRASHPAD_UTIL_THREAD_THREAD_H_