Move thread_pool.h into utils so it can be shared by more than one example.

native_client_sdk/src/build_tools/sdk_files.list

Index: native_client_sdk/src/build_tools/sdk_files.list
===================================================================
--- native_client_sdk/src/build_tools/sdk_files.list	(revision 204979)
+++ native_client_sdk/src/build_tools/sdk_files.list	(working copy)
@@ -153,8 +153,6 @@
 examples/demo/voronoi/Makefile
 [win]examples/demo/voronoi/make.bat
 examples/demo/voronoi/manifest.json
-examples/demo/voronoi/threadpool.cc
-examples/demo/voronoi/threadpool.h
 examples/demo/voronoi/voronoi.cc
 examples/favicon.ico
 [win]examples/getting_started/hello_world/make.bat
@@ -480,10 +478,11 @@
 [win]include/win/pthread.h
 [win]include/win/sched.h
 [win]include/win/semaphore.h
-include/utils/auto_lock.h
-include/utils/macros.h
-include/utils/ref_object.h
-include/utils/thread_safe_queue.h
+include/sdk_util/auto_lock.h
+include/sdk_util/macros.h
+include/sdk_util/ref_object.h
+include/sdk_util/thread_safe_queue.h
+include/sdk_util/thread_pool.h
 lib/glibc_x86_32/Debug/libjsoncpp.a
 lib/glibc_x86_32/Debug/libjsoncpp.so
 lib/glibc_x86_32/Debug/libnacl_io.a
@@ -496,6 +495,8 @@
 lib/glibc_x86_32/Debug/libppapi_gles2.so
 lib/glibc_x86_32/Debug/libppapi_simple.a
 lib/glibc_x86_32/Debug/libppapi_simple.so
+lib/glibc_x86_32/Debug/libsdk_util.a
+lib/glibc_x86_32/Debug/libsdk_util.so
 lib/glibc_x86_32/Release/libjsoncpp.a
 lib/glibc_x86_32/Release/libjsoncpp.so
 lib/glibc_x86_32/Release/libnacl_io.a
@@ -508,6 +509,8 @@
 lib/glibc_x86_32/Release/libppapi_gles2.so
 lib/glibc_x86_32/Release/libppapi_simple.a
 lib/glibc_x86_32/Release/libppapi_simple.so
+lib/glibc_x86_32/Release/libsdk_util.a
+lib/glibc_x86_32/Release/libsdk_util.so
 lib/glibc_x86_64/Debug/libjsoncpp.a
 lib/glibc_x86_64/Debug/libjsoncpp.so
 lib/glibc_x86_64/Debug/libnacl_io.a
@@ -520,6 +523,8 @@
 lib/glibc_x86_64/Debug/libppapi_gles2.so
 lib/glibc_x86_64/Debug/libppapi_simple.a
 lib/glibc_x86_64/Debug/libppapi_simple.so
+lib/glibc_x86_64/Debug/libsdk_util.a
+lib/glibc_x86_64/Debug/libsdk_util.so
 lib/glibc_x86_64/Release/libjsoncpp.a
 lib/glibc_x86_64/Release/libjsoncpp.so
 lib/glibc_x86_64/Release/libnacl_io.a
@@ -532,6 +537,8 @@
 lib/glibc_x86_64/Release/libppapi_gles2.so
 lib/glibc_x86_64/Release/libppapi_simple.a
 lib/glibc_x86_64/Release/libppapi_simple.so
+lib/glibc_x86_64/Release/libsdk_util.a
+lib/glibc_x86_64/Release/libsdk_util.so
 [linux]lib/${PLATFORM}_host/Debug/libjsoncpp.a
 [linux]lib/${PLATFORM}_host/Debug/libppapi.a
 [linux]lib/${PLATFORM}_host/Debug/libppapi_cpp.a
@@ -556,6 +563,8 @@
 [win]lib/${PLATFORM}_x86_32_host/Release/ppapi_gles2.lib
 [win]lib/${PLATFORM}_x86_32_host/Release/ppapi.lib
 [win]lib/${PLATFORM}_x86_32_host/Release/pthread.lib
+[win]lib/${PLATFORM}_x86_32_host/Debug/sdk_util.lib
+[win]lib/${PLATFORM}_x86_32_host/Release/sdk_util.lib
 lib/newlib_arm/Debug/liberror_handling.a
 lib/newlib_arm/Debug/libjsoncpp.a
 lib/newlib_arm/Debug/libnacl_io.a
@@ -563,6 +572,7 @@
 lib/newlib_arm/Debug/libppapi_cpp_private.a
 lib/newlib_arm/Debug/libppapi_gles2.a
 lib/newlib_arm/Debug/libppapi_simple.a
+lib/newlib_arm/Debug/libsdk_util.a
 lib/newlib_arm/Release/liberror_handling.a
 lib/newlib_arm/Release/libjsoncpp.a
 lib/newlib_arm/Release/libnacl_io.a
@@ -570,6 +580,7 @@
 lib/newlib_arm/Release/libppapi_cpp_private.a
 lib/newlib_arm/Release/libppapi_gles2.a
 lib/newlib_arm/Release/libppapi_simple.a
+lib/newlib_arm/Release/libsdk_util.a
 lib/newlib_x86_32/Debug/liberror_handling.a
 lib/newlib_x86_32/Debug/libjsoncpp.a
 lib/newlib_x86_32/Debug/libnacl_io.a
@@ -577,6 +588,7 @@
 lib/newlib_x86_32/Debug/libppapi_cpp_private.a
 lib/newlib_x86_32/Debug/libppapi_gles2.a
 lib/newlib_x86_32/Debug/libppapi_simple.a
+lib/newlib_x86_32/Debug/libsdk_util.a
 lib/newlib_x86_32/Release/liberror_handling.a
 lib/newlib_x86_32/Release/libjsoncpp.a
 lib/newlib_x86_32/Release/libnacl_io.a
@@ -584,6 +596,7 @@
 lib/newlib_x86_32/Release/libppapi_cpp_private.a
 lib/newlib_x86_32/Release/libppapi_gles2.a
 lib/newlib_x86_32/Release/libppapi_simple.a
+lib/newlib_x86_32/Release/libsdk_util.a
 lib/newlib_x86_64/Debug/liberror_handling.a
 lib/newlib_x86_64/Debug/libjsoncpp.a
 lib/newlib_x86_64/Debug/libnacl_io.a
@@ -591,6 +604,7 @@
 lib/newlib_x86_64/Debug/libppapi_cpp_private.a
 lib/newlib_x86_64/Debug/libppapi_gles2.a
 lib/newlib_x86_64/Debug/libppapi_simple.a
+lib/newlib_x86_64/Debug/libsdk_util.a
 lib/newlib_x86_64/Release/liberror_handling.a
 lib/newlib_x86_64/Release/libjsoncpp.a
 lib/newlib_x86_64/Release/libnacl_io.a
@@ -598,18 +612,21 @@
 lib/newlib_x86_64/Release/libppapi_cpp_private.a
 lib/newlib_x86_64/Release/libppapi_gles2.a
 lib/newlib_x86_64/Release/libppapi_simple.a
+lib/newlib_x86_64/Release/libsdk_util.a
 lib/pnacl/Debug/libjsoncpp.a
 lib/pnacl/Debug/libnacl_io.a
 lib/pnacl/Debug/libppapi_cpp.a
 lib/pnacl/Debug/libppapi_cpp_private.a
 lib/pnacl/Debug/libppapi_gles2.a
 lib/pnacl/Debug/libppapi_simple.a
+lib/pnacl/Debug/libsdk_util.a
 lib/pnacl/Release/libjsoncpp.a
 lib/pnacl/Release/libnacl_io.a
 lib/pnacl/Release/libppapi_cpp.a
 lib/pnacl/Release/libppapi_cpp_private.a
 lib/pnacl/Release/libppapi_gles2.a
 lib/pnacl/Release/libppapi_simple.a
+lib/pnacl/Release/libsdk_util.a
 LICENSE
 NOTICE
 README
@@ -859,6 +876,9 @@
 [win]src/ppapi/make.bat
 [win,linux]src/ppapi/Makefile
 [win,linux]src/ppapi/ppapi_externs.c
+src/sdk_util/Makefile
+[win]src/sdk_util/make.bat
+src/sdk_util/thread_pool.cc
 toolchain/${PLATFORM}_arm_newlib/arm-nacl/include/irt.h
 toolchain/${PLATFORM}_arm_newlib/arm-nacl/include/irt_ppapi.h
 toolchain/${PLATFORM}_arm_newlib/arm-nacl/include/nacl/dynamic_annotations.h