[CrOS PhoneHub] Add IsPhoneHubEnabled() function

Provides a simpler mechanism for checking whether the associated flag is
enabled.

Bug: 1106937
Change-Id: I7b54cae69f52d25ea6aa50843ab2e0b7e88ed7c4
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2317768Reviewed-by: Josh Nohle <nohle@chromium.org>
Commit-Queue: Kyle Horimoto <khorimoto@chromium.org>
Cr-Commit-Position: refs/heads/master@{#791890}

chromeos/constants/chromeos_features.cc

@@ -568,6 +568,10 @@ bool IsParentalControlsSettingsEnabled() {
   return base::FeatureList::IsEnabled(kParentalControlsSettings);
 }
 
+bool IsPhoneHubEnabled() {
+  return base::FeatureList::IsEnabled(kPhoneHub);
+}
+
 bool IsQuickAnswersDogfood() {
   return base::FeatureList::IsEnabled(kQuickAnswersDogfood);
 }

chromeos/constants/chromeos_features.h

@@ -239,6 +239,7 @@ COMPONENT_EXPORT(CHROMEOS_CONSTANTS) bool IsMinimumChromeVersionEnabled();
 COMPONENT_EXPORT(CHROMEOS_CONSTANTS) bool IsClipboardHistoryEnabled();
 COMPONENT_EXPORT(CHROMEOS_CONSTANTS) bool IsOobeScreensPriorityEnabled();
 COMPONENT_EXPORT(CHROMEOS_CONSTANTS) bool IsParentalControlsSettingsEnabled();
+COMPONENT_EXPORT(CHROMEOS_CONSTANTS) bool IsPhoneHubEnabled();
 COMPONENT_EXPORT(CHROMEOS_CONSTANTS) bool IsQuickAnswersDogfood();
 COMPONENT_EXPORT(CHROMEOS_CONSTANTS) bool IsQuickAnswersEnabled();
 COMPONENT_EXPORT(CHROMEOS_CONSTANTS) bool IsQuickAnswersRichUiEnabled();