Fixing misuse of std::chrono.

src/xenia/kernel/apps/xmp_app.cc

@@ -32,7 +32,7 @@ XXMPApp::XXMPApp(KernelState* kernel_state)
 X_RESULT XXMPApp::XMPGetStatus(uint32_t state_ptr) {
   // Some stupid games will hammer this on a thread - induce a delay
   // here to keep from starving real threads.
-  xe::threading::Sleep(std::chrono::milliseconds::duration(1));
+  xe::threading::Sleep(std::chrono::milliseconds(1));
 
   XELOGD("XMPGetStatus(%.8X)", state_ptr);
   xe::store_and_swap<uint32_t>(memory_->TranslateVirtual(state_ptr),

src/xenia/kernel/kernel_state.cc

@@ -585,7 +585,7 @@ void KernelState::CompleteOverlappedDeferredEx(
   dispatch_queue_.push_back([this, completion_callback, overlapped_ptr, result,
                              extended_error, length]() {
     xe::threading::Sleep(
-        std::chrono::milliseconds::duration(kDeferredOverlappedDelayMillis));
+        std::chrono::milliseconds(kDeferredOverlappedDelayMillis));
     completion_callback();
     CompleteOverlappedEx(overlapped_ptr, result, extended_error, length);
   });

src/xenia/kernel/objects/xthread.cc

@@ -409,7 +409,7 @@ void XThread::Execute() {
   // All threads get a mandatory sleep. This is to deal with some buggy
   // games that are assuming the 360 is so slow to create threads that they
   // have time to initialize shared structures AFTER CreateThread (RR).
-  xe::threading::Sleep(std::chrono::milliseconds::duration(100));
+  xe::threading::Sleep(std::chrono::milliseconds(100));
 
   int exit_code = 0;
 

src/xenia/kernel/xboxkrnl_audio_xma.cc

@@ -346,7 +346,7 @@ SHIM_CALL XMABlockWhileInUse_shim(PPCContext* ppc_context,
     if (!context.input_buffer_0_valid && !context.input_buffer_1_valid) {
       break;
     }
-    xe::threading::Sleep(std::chrono::milliseconds::duration(1));
+    xe::threading::Sleep(std::chrono::milliseconds(1));
   } while (true);
 
   SHIM_SET_RETURN_32(0);