Gpu watchdog V1 test functions clean up

Watch dog test functions SetAlternativeTerminateFunctionForTesting() and
SetTimeoutForTesting() are not used. Delete them.

Bug: 949839
Change-Id: I1bd01d02ac4fcac4297789b3aca2c8aa73f77510
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1662629
Reviewed-by: Zhenyao Mo <zmo@chromium.org>
Commit-Queue: Maggie Chen <magchen@chromium.org>
Cr-Commit-Position: refs/heads/master@{#670308}

gpu/ipc/service/gpu_watchdog_thread.cc

@@ -346,11 +346,6 @@ void GpuWatchdogThreadImplV1::DeliberatelyTerminateToRecoverFromHang() {
     return;
   }
 
-  if (alternative_terminate_for_testing_) {
-    alternative_terminate_for_testing_.Run();
-    return;
-  }
-
 #if defined(OS_WIN)
   // Defer termination until a certain amount of CPU time has elapsed on the
   // watched thread.
@@ -623,15 +618,6 @@ int GpuWatchdogThreadImplV1::GetActiveTTY() const {
 }
 #endif
 
-void GpuWatchdogThreadImplV1::SetAlternativeTerminateFunctionForTesting(
-    base::RepeatingClosure on_terminate) {
-  alternative_terminate_for_testing_ = std::move(on_terminate);
-}
-
-void GpuWatchdogThreadImplV1::SetTimeoutForTesting(base::TimeDelta timeout) {
-  timeout_ = timeout;
-}
-
 GpuWatchdogThread::GpuWatchdogThread() : base::Thread("GpuWatchdog") {}
 GpuWatchdogThread::~GpuWatchdogThread() {}
 

gpu/ipc/service/gpu_watchdog_thread.h

@@ -70,11 +70,6 @@ class GPU_IPC_SERVICE_EXPORT GpuWatchdogThreadImplV1
   void OnBackgrounded() override;
   void OnForegrounded() override;
 
-  // Test only functions. Not thread safe - set before arming.
-  void SetAlternativeTerminateFunctionForTesting(
-      base::RepeatingClosure on_terminate);
-  void SetTimeoutForTesting(base::TimeDelta timeout);
-
  protected:
   void Init() override;
   void CleanUp() override;
@@ -215,8 +210,6 @@ class GPU_IPC_SERVICE_EXPORT GpuWatchdogThreadImplV1
   int host_tty_;
 #endif
 
-  base::RepeatingClosure alternative_terminate_for_testing_;
-
   base::WeakPtrFactory<GpuWatchdogThreadImplV1> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(GpuWatchdogThreadImplV1);