Add prefix to empty param tests.

googletest will no longer support empty prefix
for parameterized INSTANTIATE_TEST_SUITE_P.
Adding "All" prefix to existing empty prefix test suites.

This CL was uploaded by git cl split.

R=loonybear@chromium.org

Bug: 1023677
Change-Id: I61b6638bcefb958cab0079adfc40c1378321e4a6
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1927058
Auto-Submit: Ilia Samsonov <isamsonov@google.com>
Reviewed-by: Raymes Khoury <raymes@chromium.org>
Commit-Queue: Ilia Samsonov <isamsonov@google.com>
Cr-Commit-Position: refs/heads/master@{#721735}

third_party/blink/renderer/core/feature_policy/feature_policy_test.cc

@@ -976,7 +976,7 @@ const AllowlistHistogramData FeaturePolicyAllowlistHistogramTest::kCases[] = {
       FeaturePolicyAllowlistType::kOrigins}}};
 
 INSTANTIATE_TEST_SUITE_P(
-    ,
+    All,
     FeaturePolicyAllowlistHistogramTest,
     ::testing::ValuesIn(FeaturePolicyAllowlistHistogramTest::kCases),
     [](const testing::TestParamInfo<AllowlistHistogramData>& param_info) {