GrVkGpu initialization cleanup.

src/gpu/vk/GrVkExtensions.h

 /*
  * Copyright 2016 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrVkExtensions_DEFINED
 #define GrVkExtensions_DEFINED
 
@@ skipping 23 matching lines @@
         fInstanceLayerStrings.swap(that->fInstanceLayerStrings);
         fDeviceLayerStrings.swap(that->fDeviceLayerStrings);
 
         SkTSwap(fInitialized, that->fInitialized);
     }
 
     /**
      * We sometimes need to use this class without having yet created a GrVkInterface. 
      */
     bool init(uint32_t specVersion,
+              VkPhysicalDevice physDev,
               PFN_vkEnumerateInstanceExtensionProperties enumerateInstanceExtensionProperties,
               PFN_vkEnumerateDeviceExtensionProperties enumerateDeviceExtensionProperties,
               PFN_vkEnumerateInstanceLayerProperties enumerateInstanceLayerProperties,
               PFN_vkEnumerateDeviceLayerProperties enumerateDeviceLayerProperties);
 
     bool isInitialized() const { return fInitialized; }
 
     /**
      * Queries whether an extension or layer is present. Will fail if init() has not been called.
      */
@@ skipping 29 matching lines @@
 
 private:
     bool                                fInitialized;
     SkAutoTDelete<SkTArray<SkString> >  fInstanceExtensionStrings;
     SkAutoTDelete<SkTArray<SkString> >  fDeviceExtensionStrings;
     SkAutoTDelete<SkTArray<SkString> >  fInstanceLayerStrings;
     SkAutoTDelete<SkTArray<SkString> >  fDeviceLayerStrings;
 };
 
 #endif