Revert "Disable ProfileProviderRealCollectionTest.* on ChromeOS"

This reverts commit 1a29a1b.

Reason for revert: Cannot reproduce the failures locally and we want
to check if the test is still failing on the bot after submitting
https://chromium-review.googlesource.com/c/chromium/src/+/4322857

Original change's description:
> Disable ProfileProviderRealCollectionTest.* on ChromeOS
>
> Bug: b/271891628
> Change-Id: I4a94dc8cdc284a80ee6fc17c7320bfd94764f633
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4312944
> Reviewed-by: Gabriel Marin <gmx@chromium.org>
> Commit-Queue: Colin Kincaid <ckincaid@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#1113634}

Bug: b/271891628
Change-Id: I31151658955bb85b6c78a81b22c7559ff49a0549
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4322877
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Reviewed-by: Colin Kincaid <ckincaid@chromium.org>
Commit-Queue: Gabriel Marin <gmx@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1117754}

chrome/browser/metrics/perf/profile_provider_unittest_main.cc

@@ -274,13 +274,8 @@ class ProfileProviderRealCollectionTest : public testing::Test {
   std::unique_ptr<TestProfileProvider> profile_provider_;
 };
 
-// Flaky on chromeos: b/271891628
-#if BUILDFLAG(IS_CHROMEOS)
-#define MAYBE_SuspendDone DISABLED_SuspendDone
-#else
-#define MAYBE_SuspendDone SuspendDone
-#endif
-TEST_F(ProfileProviderRealCollectionTest, MAYBE_SuspendDone) {
+// Flaky on chromeos: crbug.com/1184119
+TEST_F(ProfileProviderRealCollectionTest, SuspendDone) {
   // Trigger a resume from suspend.
   profile_provider_->SuspendDone(base::Minutes(10));
 
@@ -290,13 +285,7 @@ TEST_F(ProfileProviderRealCollectionTest, MAYBE_SuspendDone) {
   AssertProfileData(SampledProfile::RESUME_FROM_SUSPEND);
 }
 
-// Flaky on chromeos: b/271891628
-#if BUILDFLAG(IS_CHROMEOS)
-#define MAYBE_SessionRestoreDone DISABLED_SessionRestoreDone
-#else
-#define MAYBE_SessionRestoreDone SessionRestoreDone
-#endif
-TEST_F(ProfileProviderRealCollectionTest, MAYBE_SessionRestoreDone) {
+TEST_F(ProfileProviderRealCollectionTest, SessionRestoreDone) {
   // Restored 10 tabs.
   profile_provider_->OnSessionRestoreDone(nullptr, 10);
 
@@ -306,13 +295,7 @@ TEST_F(ProfileProviderRealCollectionTest, MAYBE_SessionRestoreDone) {
   AssertProfileData(SampledProfile::RESTORE_SESSION);
 }
 
-// Flaky on chromeos: b/271891628
-#if BUILDFLAG(IS_CHROMEOS)
-#define MAYBE_OnJankStarted DISABLED_OnJankStarted
-#else
-#define MAYBE_OnJankStarted OnJankStarted
-#endif
-TEST_F(ProfileProviderRealCollectionTest, MAYBE_OnJankStarted) {
+TEST_F(ProfileProviderRealCollectionTest, OnJankStarted) {
   // Trigger a resume from suspend.
   profile_provider_->OnJankStarted();
 
@@ -322,13 +305,7 @@ TEST_F(ProfileProviderRealCollectionTest, MAYBE_OnJankStarted) {
   AssertProfileData(SampledProfile::JANKY_TASK);
 }
 
-// Flaky on chromeos: b/271891628
-#if BUILDFLAG(IS_CHROMEOS)
-#define MAYBE_OnJankStopped DISABLED_OnJankStopped
-#else
-#define MAYBE_OnJankStopped OnJankStopped
-#endif
-TEST_F(ProfileProviderRealCollectionTest, MAYBE_OnJankStopped) {
+TEST_F(ProfileProviderRealCollectionTest, OnJankStopped) {
   // Override the default collection duration.
   auto test_params_override = GetTestCollectionParams();
   auto full_collection_duration = kCollectionDuration * 2;