test: Replace _TEST_CASE_ with _TEST_SUITE_ in /chrome/browser/profiling_host.

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instead of _TEST_CASE_, so this CL cleans up some of the outdated usage.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=ajwong@chromium.org

Bug: 925652
Change-Id: Ic9a957ef55bb0c89f51783af0ad375e2d1d020c7
Reviewed-on: https://chromium-review.googlesource.com/c/1438406
Commit-Queue: Albert J. Wong <ajwong@chromium.org>
Reviewed-by: Albert J. Wong <ajwong@chromium.org>
Cr-Commit-Position: refs/heads/master@{#626804}

chrome/browser/profiling_host/memlog_browsertest.cc

@@ -174,9 +174,9 @@ std::vector<TestParam> GetParams() {
   return params;
 }
 
-INSTANTIATE_TEST_CASE_P(Memlog,
-                        MemlogBrowserTest,
-                        ::testing::ValuesIn(GetParams()));
+INSTANTIATE_TEST_SUITE_P(Memlog,
+                         MemlogBrowserTest,
+                         ::testing::ValuesIn(GetParams()));
 
 }  // namespace heap_profiling