Limit the size of descriptor pools in vulkan

src/gpu/vk/GrVkPipelineState.h

Index: src/gpu/vk/GrVkPipelineState.h
diff --git a/src/gpu/vk/GrVkPipelineState.h b/src/gpu/vk/GrVkPipelineState.h
index 2533bff383953acf8b205eb3b7bbc9dc2b9c120c..2bfc16cf56bb6dcc2e95ddd6f031780379cb6dc3 100644
--- a/src/gpu/vk/GrVkPipelineState.h
+++ b/src/gpu/vk/GrVkPipelineState.h
@@ -168,7 +168,7 @@ private:
             , fDescType(type)
             , fCurrentDescriptorSet(0)
             , fPool(nullptr) {
-            SkASSERT(descCount < (SK_MaxU32 >> 2));
+            SkASSERT(descCount < (kMaxDescSetLimit >> 2));
             fMaxDescriptorSets = descCount << 2;
             this->getNewPool(gpu);
         }
@@ -190,6 +190,8 @@ private:
         GrVkDescriptorPool*    fPool;
 
     private:
+        static const uint32_t kMaxDescSetLimit = 1 << 10;
+
         void getNewPool(GrVkGpu* gpu);
     };