test: Replace _TEST_CASE_ with _TEST_SUITE_ in /native_client_sdk.

Googletest is (at last) converging with industry-standard terminology
[1]. We previously called test suites "test cases", which was rather
confusing for folks coming from any other testing framework.

Chrome now has a googltest version that supports _TEST_SUITE_ macros
instead of _TEST_CASE_, so this CL cleans up some of the outdated usage.

[1] https://github.com/google/googletest/blob/master/googletest/docs/primer.md#beware-of-the-nomenclature

This CL was uploaded by git cl split.

R=binji@chromium.org

Bug: 925652
Change-Id: Idecce16799fd41fc5aae7e02f8df655550ce3d86
Reviewed-on: https://chromium-review.googlesource.com/c/1438256
Commit-Queue: Sam Clegg <sbc@chromium.org>
Reviewed-by: Sam Clegg <sbc@chromium.org>
Cr-Commit-Position: refs/heads/master@{#626746}

native_client_sdk/src/tests/nacl_io_test/http_fs_test.cc

@@ -187,7 +187,7 @@ TEST_P(HttpFsTest, FTruncate) {
 }
 
 // Instantiate the above tests for all caching types.
-INSTANTIATE_TEST_CASE_P(
+INSTANTIATE_TEST_SUITE_P(
     Default,
     HttpFsTest,
     ::testing::Values((uint32_t)kStringMapParamCacheNone,
@@ -255,10 +255,10 @@ TEST_P(HttpFsLargeFileTest, GetStat) {
 // Instantiate the large file tests, only when cache content is off.
 // TODO(binji): make cache content smarter, so it doesn't try to cache enormous
 // files. See http://crbug.com/369279.
-INSTANTIATE_TEST_CASE_P(Default,
-                        HttpFsLargeFileTest,
-                        ::testing::Values((uint32_t)kStringMapParamCacheNone,
-                                          (uint32_t)kStringMapParamCacheStat));
+INSTANTIATE_TEST_SUITE_P(Default,
+                         HttpFsLargeFileTest,
+                         ::testing::Values((uint32_t)kStringMapParamCacheNone,
+                                           (uint32_t)kStringMapParamCacheStat));
 
 TEST(HttpFsDirTest, Root) {
   StringMap_t args;