content: Depict priority in raster worker thread's name.

base/threading/platform_thread_posix.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 "base/threading/platform_thread.h"
 
 #include <errno.h>
 #include <pthread.h>
 #include <sched.h>
 #include <stddef.h>
@@ skipping 106 matching lines @@
   }
   *thread_handle = PlatformThreadHandle(handle);
 
   pthread_attr_destroy(&attributes);
 
   return success;
 }
 
 }  // namespace
 
+// TODO(prashant.n): Move to common file across platforms.
+std::string GetThreadPriorityAbbr(ThreadPriority priority) {
+  switch (priority) {
+    case ThreadPriority::BACKGROUND:
+      return "bg";
+    case ThreadPriority::NORMAL:
+      return "nl";
+    case ThreadPriority::DISPLAY:
+      return "ds";
+    case ThreadPriority::REALTIME_AUDIO:
+      return "rt";
+    default:
+      NOTREACHED();
+      return "";
+  }
+}
+
 // static
 PlatformThreadId PlatformThread::CurrentId() {
   // Pthreads doesn't have the concept of a thread ID, so we have to reach down
   // into the kernel.
 #if defined(OS_MACOSX)
   return pthread_mach_thread_np(pthread_self());
 #elif defined(OS_LINUX)
   return syscall(__NR_gettid);
 #elif defined(OS_ANDROID)
   return gettid();
@@ skipping 118 matching lines @@
     return ThreadPriority::NORMAL;
   }
 
   return internal::NiceValueToThreadPriority(nice_value);
 #endif  // !defined(OS_NACL)
 }
 
 #endif  // !defined(OS_MACOSX)
 
 }  // namespace base