Revert "Revert "Dynamically load the vulkan library in our test tools""

This reverts commit c8dd283c9a784d1e115019f5b4a1b0e082513203.

Reason for revert: <INSERT REASONING HERE>

Original change's description:
> Revert "Dynamically load the vulkan library in our test tools"
> 
> This reverts commit 77d6feaa69d95c42f4e77195e92de33917995544.
> 
> Reason for revert: breaking google 3
> 
> Original change's description:
> > Dynamically load the vulkan library in our test tools
> > 
> > Bug: skia:
> > Change-Id: I7c1f6cbb2b50ca284f40cf4b9ef49a76083b38c6
> > Reviewed-on: https://skia-review.googlesource.com/68643
> > Reviewed-by: Chris Dalton <csmartdalton@google.com>
> > Commit-Queue: Greg Daniel <egdaniel@google.com>
> 
> TBR=egdaniel@google.com,csmartdalton@google.com
> 
> Change-Id: I6b2588e71f1876868fcf8f2b3c91a96e7c689045
> No-Presubmit: true
> No-Tree-Checks: true
> No-Try: true
> Bug: skia:
> Reviewed-on: https://skia-review.googlesource.com/69780
> Reviewed-by: Greg Daniel <egdaniel@google.com>
> Commit-Queue: Greg Daniel <egdaniel@google.com>

TBR=egdaniel@google.com,csmartdalton@google.com

Change-Id: I758aec07114305f0add086eecb1deb94d0140dcf
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: skia:
Reviewed-on: https://skia-review.googlesource.com/69900
Commit-Queue: Greg Daniel <egdaniel@google.com>
Reviewed-by: Greg Daniel <egdaniel@google.com>

1 files changed, 7 insertions, 3 deletions

diff --git a/tools/gpu/vk/VkTestContext.cpp b/tools/gpu/vk/VkTestContext.cpp
index e329583a03..daaa55bfa0 100644
--- a/tools/gpu/vk/VkTestContext.cpp
+++ b/tools/gpu/vk/VkTestContext.cpp
@@ -10,9 +10,9 @@
 #ifdef SK_VULKAN
 
 #include "GrContext.h"
+#include "VkTestUtils.h"
 #include "vk/GrVkInterface.h"
 #include "vk/GrVkUtil.h"
-#include <vulkan/vulkan.h>
 
 namespace {
 /**
@@ -114,8 +114,12 @@ public:
         if (sharedContext) {
             backendContext = sharedContext->getVkBackendContext();
         } else {
-            backendContext.reset(GrVkBackendContext::Create(vkGetInstanceProcAddr,
-                                                            vkGetDeviceProcAddr));
+            PFN_vkGetInstanceProcAddr instProc;
+            PFN_vkGetDeviceProcAddr devProc;
+            if (!sk_gpu_test::LoadVkLibraryAndGetProcAddrFuncs(&instProc, &devProc)) {
+                return nullptr;
+            }
+            backendContext.reset(GrVkBackendContext::Create(instProc, devProc));
         }
         if (!backendContext) {
             return nullptr;