Limit the size of descriptor pools in vulkan

src/gpu/vk/GrVkPipelineState.cpp

Index: src/gpu/vk/GrVkPipelineState.cpp
diff --git a/src/gpu/vk/GrVkPipelineState.cpp b/src/gpu/vk/GrVkPipelineState.cpp
index 5e3acf818a297f3bf62f0cd74934559df94c4486..3e442fb249b5c7d1b51a559156e8e3614e4186a4 100644
--- a/src/gpu/vk/GrVkPipelineState.cpp
+++ b/src/gpu/vk/GrVkPipelineState.cpp
@@ -409,7 +409,11 @@ void GrVkPipelineState::DescriptorPoolManager::getNewPool(GrVkGpu* gpu) {
     if (fPool) {
         fPool->unref(gpu);
         SkASSERT(fMaxDescriptorSets < (SK_MaxU32 >> 1));
-        fMaxDescriptorSets = fMaxDescriptorSets << 1;
+        if (fMaxDescriptorSets < kMaxDescSetLimit >> 1) {
+            fMaxDescriptorSets = fMaxDescriptorSets << 1;
+        } else {
+            fMaxDescriptorSets = kMaxDescSetLimit;
+        }
 
     }
     if (fMaxDescriptorSets) {