Assign thread name to in_proc renderer and gpu thread.

content/gpu/in_process_gpu_thread.cc

Index: content/gpu/in_process_gpu_thread.cc
diff --git a/content/gpu/in_process_gpu_thread.cc b/content/gpu/in_process_gpu_thread.cc
index 10d0702e014b017bf72af5df0b9541a426fa12e7..4fa71bfbb7ca87e79c13dbfd3e254704f79ac679 100644
--- a/content/gpu/in_process_gpu_thread.cc
+++ b/content/gpu/in_process_gpu_thread.cc
@@ -10,6 +10,10 @@
 #include "content/gpu/gpu_process.h"
 #include "gpu/command_buffer/service/sync_point_manager.h"
 
+#if defined(OS_ANDROID)
+#include "base/android/jni_android.h"
+#endif
+
 namespace content {
 
 InProcessGpuThread::InProcessGpuThread(
@@ -34,6 +38,14 @@ InProcessGpuThread::~InProcessGpuThread() {
 }
 
 void InProcessGpuThread::Init() {
+  // Call AttachCurrentThreadWithName, before any other AttachCurrentThread()
+  // calls. The latter causes Java VM to assign Thread-??? to the thread name.
+  // Please note calls to AttachCurrentThreadWithName after AttachCurrentThread
+  // will not change the thread name kept in Java VM.
+#if defined(OS_ANDROID)
+  base::android::AttachCurrentThreadWithName(thread_name());
+#endif
+
   gpu_process_ = new GpuProcess();
 
   // The process object takes ownership of the thread object, so do not