[Cronet] Purge storage directory if version does not match

components/cronet/android/BUILD.gn

 # Copyright 2015 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import("//build/buildflag_header.gni")
 import("//build/config/android/config.gni")
 import("//build/config/android/rules.gni")
 import("//build/util/version.gni")
 import("//chrome/version.gni")
 import("//testing/test.gni")
@@ skipping 561 matching lines @@
     "test/javatests/src/org/chromium/net/BidirectionalStreamTest.java",
     "test/javatests/src/org/chromium/net/ChromiumUrlRequestTest.java",
     "test/javatests/src/org/chromium/net/ChunkedWritableByteChannelTest.java",
     "test/javatests/src/org/chromium/net/ContextInitTest.java",
     "test/javatests/src/org/chromium/net/Criteria.java",
     "test/javatests/src/org/chromium/net/CronetTestBase.java",
     "test/javatests/src/org/chromium/net/CronetUploadTest.java",
     "test/javatests/src/org/chromium/net/CronetUrlRequestContextTest.java",
     "test/javatests/src/org/chromium/net/CronetUrlRequestTest.java",
     "test/javatests/src/org/chromium/net/CronetUrlTest.java",
+    "test/javatests/src/org/chromium/net/DiskStorageTest.java",
     "test/javatests/src/org/chromium/net/GetStatusTest.java",
     "test/javatests/src/org/chromium/net/HttpUrlRequestFactoryTest.java",
     "test/javatests/src/org/chromium/net/NetworkChangeNotifierTest.java",
     "test/javatests/src/org/chromium/net/PkpTest.java",
     "test/javatests/src/org/chromium/net/QuicTest.java",
     "test/javatests/src/org/chromium/net/SdchTest.java",
     "test/javatests/src/org/chromium/net/TestBidirectionalStreamCallback.java",
     "test/javatests/src/org/chromium/net/TestDrivenDataProvider.java",
     "test/javatests/src/org/chromium/net/TestHttpUrlRequestListener.java",
     "test/javatests/src/org/chromium/net/TestUploadDataProvider.java",
@@ skipping 289 matching lines @@
     ":cronet_package_copy_native_lib",
     ":cronet_package_copy_native_lib_unstripped",
     ":generate_javadoc",
     ":generate_licenses",
     ":jar_cronet_api_source",
     ":jar_cronet_other_source",
     ":jar_cronet_sample_source",
     ":repackage_extracted_jars",
   ]
 }