Merge "Instrument printing service for metrics collection." into mnc-dev

Author: cwren

packages/PrintSpooler/src/com/android/printspooler/model/PrintSpoolerService.java

@@ -46,6 +46,7 @@
 import android.util.Slog;
 import android.util.Xml;
 
+import com.android.internal.logging.MetricsLogger;
 import com.android.internal.os.HandlerCaller;
 import com.android.internal.util.FastXmlSerializer;
 import com.android.printspooler.R;
@@ -493,6 +494,7 @@ public boolean setPrintJobState(PrintJobId printJobId, int state, String error)
                     Slog.i(LOG_TAG, "[STATE CHANGED] " + printJob);
                 }
 
+                MetricsLogger.histogram(this, "print_job_state", state);
                 switch (state) {
                     case PrintJobInfo.STATE_COMPLETED:
                     case PrintJobInfo.STATE_CANCELED:

packages/PrintSpooler/src/com/android/printspooler/ui/PrintActivity.java

@@ -72,6 +72,7 @@
 import android.widget.Spinner;
 import android.widget.TextView;
 
+import com.android.internal.logging.MetricsLogger;
 import com.android.printspooler.R;
 import com.android.printspooler.model.MutexFileProvider;
 import com.android.printspooler.model.PrintSpoolerProvider;
@@ -325,6 +326,7 @@ public void onResume() {
         if (mState != STATE_INITIALIZING && mCurrentPrinter != null) {
             mPrinterRegistry.setTrackedPrinter(mCurrentPrinter.getId());
         }
+        MetricsLogger.count(this, "print_preview", 1);
     }
 
     @Override
@@ -1074,6 +1076,8 @@ private void cancelPrint() {
     private void confirmPrint() {
         setState(STATE_PRINT_CONFIRMED);
 
+        MetricsLogger.count(this, "print_confirmed", 1);
+
         updateOptionsUi();
         addCurrentPrinterToHistory();