Merge "Add tracing for setEdgeBackPlugin" into tm-qpr-dev

packages/SystemUI/src/com/android/systemui/navigationbar/gestural/EdgeBackGestureHandler.java

@@ -501,6 +501,15 @@ public class EdgeBackGestureHandler implements PluginListener<NavigationEdgeBack
     }
 
     private void updateIsEnabled() {
+        try {
+            Trace.beginSection("EdgeBackGestureHandler#updateIsEnabled");
+            updateIsEnabledTraced();
+        } finally {
+            Trace.endSection();
+        }
+    }
+
+    private void updateIsEnabledTraced() {
         boolean isEnabled = mIsAttached && mIsGesturalModeEnabled;
         if (isEnabled == mIsEnabled) {
             return;
@@ -586,13 +595,18 @@ public class EdgeBackGestureHandler implements PluginListener<NavigationEdgeBack
     }
 
     private void setEdgeBackPlugin(NavigationEdgeBackPlugin edgeBackPlugin) {
-        if (mEdgeBackPlugin != null) {
+        try {
-            mEdgeBackPlugin.onDestroy();
+            Trace.beginSection("setEdgeBackPlugin");
+            if (mEdgeBackPlugin != null) {
+                mEdgeBackPlugin.onDestroy();
+            }
+            mEdgeBackPlugin = edgeBackPlugin;
+            mEdgeBackPlugin.setBackCallback(mBackCallback);
+            mEdgeBackPlugin.setLayoutParams(createLayoutParams());
+            updateDisplaySize();
+        } finally {
+            Trace.endSection();
         }
-        mEdgeBackPlugin = edgeBackPlugin;
-        mEdgeBackPlugin.setBackCallback(mBackCallback);
-        mEdgeBackPlugin.setLayoutParams(createLayoutParams());
-        updateDisplaySize();
     }
 
     public boolean isHandlingGestures() {