Fix Xcode 13 beta 4 build issues for Firebase Performance (#8516)

* Fix Xcode 13 beta 4 build issues

* Update to NS_EXTENSION_UNAVAILABLE instead of NS_EXTENSION_UNAVAILABLE_IOS

Author: jeremyjiang-dev

FirebasePerformance/Sources/AppActivity/FPRAppActivityTracker.h

@@ -38,6 +38,7 @@ typedef NS_ENUM(NSInteger, FPRApplicationState) {
 /** This class is used to track the app activity and create internal traces to capture the
  *  performance metrics.
  */
+NS_EXTENSION_UNAVAILABLE("Firebase Performance is not supported for extensions.")
 @interface FPRAppActivityTracker : NSObject
 
 /** The trace that tracks the currently active session of the app. *Do not stop this trace*. This is

FirebasePerformance/Sources/AppActivity/FPRScreenTraceTracker.h

@@ -20,6 +20,7 @@ NS_ASSUME_NONNULL_BEGIN
  *  frames and slow frames, and if it has been registered as a delegate of FIRAScreenViewReporter,
  *  it also automatically creates screen traces for each UIViewController.
  */
+NS_EXTENSION_UNAVAILABLE("Firebase Performance is not supported for extensions.")
 @interface FPRScreenTraceTracker : NSObject
 
 /** Singleton instance of FPRScreenTraceTracker.

FirebasePerformance/Sources/AppActivity/FPRSessionManager.h

@@ -22,6 +22,7 @@ FOUNDATION_EXTERN NSString *_Nonnull const kFPRSessionIdUpdatedNotification;
 /** This class manages the current active sessionId of the application and provides mechanism for
  *  propagating the session Id.
  */
+NS_EXTENSION_UNAVAILABLE("Firebase Performance is not supported for extensions.")
 @interface FPRSessionManager : NSObject
 
 /** The current active session managed by the session manager. */

FirebasePerformance/Sources/AppActivity/FPRTraceBackgroundActivityTracker.h

@@ -33,6 +33,7 @@ typedef NS_ENUM(NSInteger, FPRTraceState) {
  * object. This object will be used by a trace to determine its application state if the lifecycle
  * of the trace is backgrounded, foregrounded or both.
  */
+NS_EXTENSION_UNAVAILABLE("Firebase Performance is not supported for extensions.")
 @interface FPRTraceBackgroundActivityTracker : NSObject
 
 /** Background state of the tracker. */

FirebasePerformance/Sources/FPRClient.h

@@ -30,6 +30,7 @@ typedef NS_ENUM(NSInteger, FPRClientErrorCode) {
 /** This class is not exposed to the public and internally provides the primary entry point into
  *  the Firebase Performance module's functionality.
  */
+NS_EXTENSION_UNAVAILABLE("Firebase Performance is not supported for extensions.")
 @interface FPRClient : NSObject
 
 /** YES if SDK is configured, otherwise NO. */

FirebasePerformance/Sources/FPRNanoPbUtils.h

@@ -107,21 +107,25 @@ extern StringToNumberMap* _Nullable FPREncodeStringToNumberMap(NSDictionary* _Nu
  *  @param appID The Google app id to put into the message
  *  @return A firebase_perf_v1_PerfMetric struct.
  */
+NS_EXTENSION_UNAVAILABLE("Firebase Performance is not supported for extensions.")
 extern firebase_perf_v1_PerfMetric FPRGetPerfMetricMessage(NSString* _Nonnull appID);
 
 /** Creates a new firebase_perf_v1_ApplicationInfo struct populated with system metadata.
  *  @return A firebase_perf_v1_ApplicationInfo struct.
  */
+NS_EXTENSION_UNAVAILABLE("Firebase Performance is not supported for extensions.")
 extern firebase_perf_v1_ApplicationInfo FPRGetApplicationInfoMessage(void);
 
 /** Converts the FIRTrace object to a firebase_perf_v1_TraceMetric struct.
  *  @return A firebase_perf_v1_TraceMetric struct.
  */
+NS_EXTENSION_UNAVAILABLE("Firebase Performance is not supported for extensions.")
 extern firebase_perf_v1_TraceMetric FPRGetTraceMetric(FIRTrace* _Nonnull trace);
 
 /** Converts the FPRNetworkTrace object to a firebase_perf_v1_NetworkRequestMetric struct.
  *  @return A firebase_perf_v1_NetworkRequestMetric struct.
  */
+NS_EXTENSION_UNAVAILABLE("Firebase Performance is not supported for extensions.")
 extern firebase_perf_v1_NetworkRequestMetric FPRGetNetworkRequestMetric(
     FPRNetworkTrace* _Nonnull trace);
 

FirebasePerformance/Sources/Gauges/CPU/FPRCPUGaugeCollector.h

@@ -23,6 +23,7 @@ NS_ASSUME_NONNULL_BEGIN
 @class FPRCPUGaugeCollector;
 
 /** Delegate method for the CPU Gauge collector to report back the CPU gauge data. */
+NS_EXTENSION_UNAVAILABLE("Firebase Performance is not supported for extensions.")
 @protocol FPRCPUGaugeCollectorDelegate
 
 /**
@@ -38,6 +39,7 @@ NS_ASSUME_NONNULL_BEGIN
 /** CPU Gauge collector implementation. This class collects the CPU utilitization and reports back
  *  to the delegate.
  */
+NS_EXTENSION_UNAVAILABLE("Firebase Performance is not supported for extensions.")
 @interface FPRCPUGaugeCollector : NSObject <FPRGaugeCollector>
 
 /** Reference to the delegate object. */

FirebasePerformance/Sources/Gauges/FPRGaugeManager+Private.h

@@ -18,6 +18,7 @@
 #import "FirebasePerformance/Sources/Gauges/Memory/FPRMemoryGaugeCollector.h"
 
 /** This extension should only be used for testing. */
+NS_EXTENSION_UNAVAILABLE("Firebase Performance is not supported for extensions.")
 @interface FPRGaugeManager ()
 
 /** @brief Tracks if gauge collection is enabled. */

FirebasePerformance/Sources/Gauges/FPRGaugeManager.h

@@ -27,6 +27,7 @@ typedef NS_OPTIONS(NSUInteger, FPRGauges) {
 
 /** This class controls different gauge collection in the system. List of the gauges this class
  manages are listed above. */
+NS_EXTENSION_UNAVAILABLE("Firebase Performance is not supported for extensions.")
 @interface FPRGaugeManager : NSObject
 
 /** @brief List of gauges that are currently being actively captured. */

FirebasePerformance/Sources/Gauges/FPRGaugeManager.m

@@ -26,6 +26,7 @@
 // Number of gauge data information after which that gets flushed to Google Data Transport.
 NSInteger const kGaugeDataBatchSize = 25;
 
+NS_EXTENSION_UNAVAILABLE("Firebase Performance is not supported for extensions.")
 @interface FPRGaugeManager () <FPRCPUGaugeCollectorDelegate, FPRMemoryGaugeCollectorDelegate>
 
 /** @brief List of gauges that are currently being actively captured. */