import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

gfx/src/gfxTelemetry.cpp

@@ -0,0 +1,59 @@
+/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+#include "gfxTelemetry.h"
+
+namespace mozilla {
+namespace gfx {
+
+const char*
+FeatureStatusToString(FeatureStatus aStatus)
+{
+  switch (aStatus) {
+    case FeatureStatus::Unused:
+      return "unused";
+    case FeatureStatus::Unavailable:
+      return "unavailable";
+    case FeatureStatus::CrashedInHandler:
+      return "crashed";
+    case FeatureStatus::Blocked:
+      return "blocked";
+    case FeatureStatus::Blacklisted:
+      return "blacklisted";
+    case FeatureStatus::Failed:
+      return "failed";
+    case FeatureStatus::Disabled:
+      return "disabled";
+    case FeatureStatus::Available:
+      return "available";
+    case FeatureStatus::ForceEnabled:
+      return "force_enabled";
+    case FeatureStatus::CrashedOnStartup:
+      return "crashed_on_startup";
+    case FeatureStatus::Broken:
+      return "broken";
+    default:
+      MOZ_ASSERT_UNREACHABLE("missing status case");
+      return "unknown";
+  }
+}
+
+bool
+IsFeatureStatusFailure(FeatureStatus aStatus)
+{
+  return !(aStatus == FeatureStatus::Unused ||
+           aStatus == FeatureStatus::Available ||
+           aStatus == FeatureStatus::ForceEnabled);
+}
+
+bool
+IsFeatureStatusSuccess(FeatureStatus aStatus)
+{
+  return aStatus == FeatureStatus::Available ||
+         aStatus == FeatureStatus::ForceEnabled;
+}
+
+} // namespace gfx
+} // namespace mozilla