Fix vulkan layer callback bug

src/gpu/vk/GrVkGpu.cpp

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrVkGpu.h"
 
 #include "GrContextOptions.h"
@@ skipping 77 matching lines @@
     , fResourceProvider(this) {
     fBackendContext.reset(backendCtx);
 
 #ifdef ENABLE_VK_LAYERS
     if (backendCtx->fExtensions & kEXT_debug_report_GrVkExtensionFlag) {
         // Setup callback creation information
         VkDebugReportCallbackCreateInfoEXT callbackCreateInfo;
         callbackCreateInfo.sType = VK_STRUCTURE_TYPE_DEBUG_REPORT_CREATE_INFO_EXT;
         callbackCreateInfo.pNext = nullptr;
         callbackCreateInfo.flags = VK_DEBUG_REPORT_ERROR_BIT_EXT |
-                                   VK_DEBUG_REPORT_WARNING_BIT_EXT;// |
+                                   VK_DEBUG_REPORT_WARNING_BIT_EXT |
                                    //VK_DEBUG_REPORT_INFORMATION_BIT_EXT |
                                    //VK_DEBUG_REPORT_DEBUG_BIT_EXT |
                                    VK_DEBUG_REPORT_PERFORMANCE_WARNING_BIT_EXT;
         callbackCreateInfo.pfnCallback = &DebugReportCallback;
         callbackCreateInfo.pUserData = nullptr;
 
         // Register the callback
         GR_VK_CALL_ERRCHECK(this->vkInterface(), CreateDebugReportCallbackEXT(fVkInstance,
                             &callbackCreateInfo, nullptr, &fCallback));
     }
@@ skipping 1455 matching lines @@
     aglSwapBuffers(aglGetCurrentContext());
     int set_a_break_pt_here = 9;
     aglSwapBuffers(aglGetCurrentContext());
 #elif defined(SK_BUILD_FOR_WIN32)
     SwapBuf();
     int set_a_break_pt_here = 9;
     SwapBuf();
 #endif
 #endif
 }