Log visibility change for all fragments.

Bug: 30681771
Test: SettingsUnitTests

Refactor visibility logging from InstrumentedFragment into a mixin. And
apply mixin in remaining fragments.

Change-Id: Ibbb59904336254a3e4bb9e8c7d0b36e5a6bc2622

src/com/android/settings/wifi/AdvancedWifiSettings.java

@@ -48,7 +48,7 @@ public class AdvancedWifiSettings extends RestrictedSettingsFragment {
     }
 
     @Override
-    protected int getMetricsCategory() {
+    public int getMetricsCategory() {
         return MetricsEvent.WIFI_ADVANCED;
     }
 

src/com/android/settings/wifi/ConfigureWifiSettings.java

@@ -242,7 +242,7 @@ public class ConfigureWifiSettings extends SettingsPreferenceFragment
     }
 
     @Override
-    protected int getMetricsCategory() {
+    public int getMetricsCategory() {
         return MetricsEvent.CONFIGURE_WIFI;
     }
 

src/com/android/settings/wifi/SavedAccessPointsWifiSettings.java

@@ -59,7 +59,7 @@ public class SavedAccessPointsWifiSettings extends SettingsPreferenceFragment
     private static final String SAVE_DIALOG_ACCESS_POINT_STATE = "wifi_ap_state";
 
     @Override
-    protected int getMetricsCategory() {
+    public int getMetricsCategory() {
         return MetricsEvent.WIFI_SAVED_ACCESS_POINTS;
     }
 

src/com/android/settings/wifi/WifiAPITest.java

@@ -85,7 +85,7 @@ public class WifiAPITest extends SettingsPreferenceFragment implements
     }
 
     @Override
-    protected int getMetricsCategory() {
+    public int getMetricsCategory() {
         return MetricsEvent.TESTING;
     }
 

src/com/android/settings/wifi/WifiInfo.java

@@ -35,7 +35,7 @@ public class WifiInfo extends SettingsPreferenceFragment {
     }
 
     @Override
-    protected int getMetricsCategory() {
+    public int getMetricsCategory() {
         return MetricsEvent.TESTING;
     }
 }

src/com/android/settings/wifi/WifiSettings.java

@@ -351,7 +351,7 @@ public class WifiSettings extends RestrictedSettingsFragment
     }
 
     @Override
-    protected int getMetricsCategory() {
+    public int getMetricsCategory() {
         return MetricsEvent.WIFI;
     }
 

src/com/android/settings/wifi/p2p/WifiP2pSettings.java

@@ -491,7 +491,7 @@ public class WifiP2pSettings extends SettingsPreferenceFragment
     }
 
     @Override
-    protected int getMetricsCategory() {
+    public int getMetricsCategory() {
         return MetricsEvent.WIFI_P2P;
     }