Replace use of deprecated GrDirectContext API

Change-Id: I136ac31fd693f3a32f76e2d728952f370cdf7683
diff --git a/libs/hwui/renderthread/CacheManager.cpp b/libs/hwui/renderthread/CacheManager.cpp
index 735fc07..30d4612 100644
--- a/libs/hwui/renderthread/CacheManager.cpp
+++ b/libs/hwui/renderthread/CacheManager.cpp
@@ -169,7 +169,8 @@
         return;
     }
     mGrContext->flushAndSubmit();
-    mGrContext->purgeResourcesNotUsedInMs(std::chrono::seconds(30));
+    mGrContext->performDeferredCleanup(std::chrono::seconds(30),
+                                       GrPurgeResourceOptions::kAllResources);
 }
 
 void CacheManager::getMemoryUsage(size_t* cpuUsage, size_t* gpuUsage) {