remove SkThread, using std::thread instead

Change-Id: I871dd5eea4496e87c206b46d9eae81cb521b11ce
Reviewed-on: https://skia-review.googlesource.com/65103
Reviewed-by: Hal Canary <halcanary@google.com>
Commit-Queue: Mike Klein <mtklein@chromium.org>

1 files changed, 5 insertions, 95 deletions

diff --git a/src/utils/SkThreadUtils_win.cpp b/src/utils/SkThreadUtils_win.cpp
index 0da339aa84..ae4db9ae55 100644
--- a/src/utils/SkThreadUtils_win.cpp
+++ b/src/utils/SkThreadUtils_win.cpp
@@ -1,101 +1,11 @@
 /*
- * Copyright 2012 Google Inc.
+ * Copyright 2017 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
-#include "SkTypes.h"
-#if defined(SK_BUILD_FOR_WIN32)
-
-#include "SkThreadUtils.h"
-#include "SkThreadUtils_win.h"
-
-SkThread_WinData::SkThread_WinData(SkThread::entryPointProc entryPoint, void* data)
-    : fHandle(nullptr)
-    , fParam(data)
-    , fThreadId(0)
-    , fEntryPoint(entryPoint)
-    , fStarted(false)
-{
-    fCancelEvent = CreateEvent(
-        nullptr,  // default security attributes
-        false, //auto reset
-        false, //not signaled
-        nullptr); //no name
-}
-
-SkThread_WinData::~SkThread_WinData() {
-    CloseHandle(fCancelEvent);
-}
-
-static DWORD WINAPI thread_start(LPVOID data) {
-    SkThread_WinData* winData = static_cast<SkThread_WinData*>(data);
-
-    //See if this thread was canceled before starting.
-    if (WaitForSingleObject(winData->fCancelEvent, 0) == WAIT_OBJECT_0) {
-        return 0;
-    }
-
-    winData->fEntryPoint(winData->fParam);
-    return 0;
-}
-
-SkThread::SkThread(entryPointProc entryPoint, void* data) {
-    SkThread_WinData* winData = new SkThread_WinData(entryPoint, data);
-    fData = winData;
-
-    if (nullptr == winData->fCancelEvent) {
-        return;
-    }
-
-    winData->fHandle = CreateThread(
-        nullptr,                   // default security attributes
-        0,                      // use default stack size
-        thread_start,           // thread function name (proxy)
-        winData,                // argument to thread function (proxy args)
-        CREATE_SUSPENDED,       // we used to set processor affinity, which needed this
-        &winData->fThreadId);   // returns the thread identifier
-}
-
-SkThread::~SkThread() {
-    if (fData != nullptr) {
-        SkThread_WinData* winData = static_cast<SkThread_WinData*>(fData);
-        // If created thread but start was never called, kill the thread.
-        if (winData->fHandle != nullptr && !winData->fStarted) {
-            if (SetEvent(winData->fCancelEvent) != 0) {
-                if (this->start()) {
-                    this->join();
-                }
-            } else {
-                //kill with prejudice
-                TerminateThread(winData->fHandle, -1);
-            }
-        }
-        delete winData;
-    }
-}
-
-bool SkThread::start() {
-    SkThread_WinData* winData = static_cast<SkThread_WinData*>(fData);
-    if (nullptr == winData->fHandle) {
-        return false;
-    }
-
-    if (winData->fStarted) {
-        return false;
-    }
-    winData->fStarted = -1 != ResumeThread(winData->fHandle);
-    return winData->fStarted;
-}
-
-void SkThread::join() {
-    SkThread_WinData* winData = static_cast<SkThread_WinData*>(fData);
-    if (nullptr == winData->fHandle || !winData->fStarted) {
-        return;
-    }
-
-    WaitForSingleObject(winData->fHandle, INFINITE);
-}
-
-#endif//defined(SK_BUILD_FOR_WIN32)
+// Nothing to see here.
+//
+// We just need to keep this file around until we do the song and dance
+// to stop explicitly removing it from Chromium's GN build.