ShowThreadNames tool to get thread ID/name pairs in a Chrome process

tools/win/ShowThreadNames/ReadMe.txt

Index: tools/win/ShowThreadNames/ReadMe.txt
diff --git a/tools/win/ShowThreadNames/ReadMe.txt b/tools/win/ShowThreadNames/ReadMe.txt
new file mode 100644
index 0000000000000000000000000000000000000000..63aa0cf8243d034afe0c19250ec420c9286e7dfd
--- /dev/null
+++ b/tools/win/ShowThreadNames/ReadMe.txt
@@ -0,0 +1,61 @@
+[Motivation]
+This tool is designed to test the usage of the SetThreadDescription WinAPI in
+Chrome. In Chrome, the SetThreadDescription API has been enabled to set thread
+names. However, since there is no tool support to retrieve thread names set by
+GetThreadDescription, we will still rely on SetNameInternal function in 
+platform_thread_win.cc to set thread names. Despite this, we need a tool to 
+demo the SetThreadDescription API works, even without the debugger to be 
+present.
+
+The problem setting can be referred to 
+https://bugs.chromium.org/p/chromium/issues/detail?id=684203
+
+This tool incorporates the GetThreadDescription API trying to get names of all
+threads in a process specified by its ID. If the thread names have been set by
+SetThreadDescription API call like in Chrome, all thread ID/name pairs are
+returned.
+
+[Requirement]
+Since SetThreadDescription/GetThreadDescription APIs are brought in Windows 10,
+version 1607, this tool can only be effective if running in this version or
+later ones.
+
+[How to use it]
+Please download the three files (.cc, .sln, .vcxproj) and compile the code in 
+Visual Studio. Run "ShowThreadNames.exe" either from the build directory or 
+from Visual Studio. No parameters are needed. This tool allows interaction 
+with users. Once launched, it will show "Please enter the process Id, or 
+"quit" to end the program :" on the terminal. Simply type in the ID of any 
+Chrome process you are interested in, and you will get output like below:
+
+thread_ID   thread_name
+12116
+10292
+6532
+6928
+2488
+11304
+2256    AudioThread
+9308    BrokerEvent
+5668    BrowserWatchdog
+4352    Chrome_CacheThread
+12268   Chrome_DBThread
+8616    Chrome_FileThread
+1072    Chrome_FileUserBlockingThread
+8280    Chrome_HistoryThread
+7472    Chrome_IOThread
+6336    Chrome_ProcessLauncherThread
+12212   CompositorTileWorker1/12212
+3628    CrBrowserMain
+6472    DnsConfigService
+1980    IndexedDB
+10560   TaskSchedulerBackgroundBlockingWorker0
+11464   TaskSchedulerBackgroundWorker0
+3156    TaskSchedulerForegroundBlockingWorker5
+7660    TaskSchedulerForegroundWorker0
+8216    TaskSchedulerServiceThread
+11088   VideoCaptureThread
+
+The threads have been sorted by their names. Note that some threads have
+no names in this example. If checking them using Visual Studio debugger, it 
+is found that they are ntdll.dll!WorkerThreads.