Use LibraryLoader to check for native library

BUG=636490

Review-Url: https://codereview.chromium.org/2370943003
Cr-Commit-Position: refs/heads/master@{#422686}

chrome/android/java/src/org/chromium/chrome/browser/physicalweb/PhysicalWebUma.java

@@ -10,6 +10,7 @@ import android.os.AsyncTask;
 
 import org.chromium.base.ContextUtils;
 import org.chromium.base.Log;
+import org.chromium.base.library_loader.LibraryLoader;
 import org.chromium.base.metrics.RecordHistogram;
 import org.chromium.base.metrics.RecordUserAction;
 import org.chromium.components.location.LocationUtils;
@@ -64,7 +65,6 @@ public class PhysicalWebUma {
     private static final String PREFERENCE = "Preference";
     private static final int BOOLEAN_BOUNDARY = 2;
     private static final int TRISTATE_BOUNDARY = 3;
-    private static boolean sUploadAllowed = false;
 
     /**
      * Records a URL selection.
@@ -169,7 +169,7 @@ public class PhysicalWebUma {
      * @param numUrls The number of URLs displayed to a user.
      */
     public static void onUrlsDisplayed(Context context, int numUrls) {
-        if (sUploadAllowed) {
+        if (LibraryLoader.isInitialized()) {
             RecordHistogram.recordCountHistogram(TOTAL_URLS_INITIAL_COUNTS, numUrls);
         } else {
             storeValue(context, TOTAL_URLS_INITIAL_COUNTS, numUrls);
@@ -181,7 +181,7 @@ public class PhysicalWebUma {
      * @param numUrls The number of URLs displayed to a user.
      */
     public static void onUrlsRefreshed(Context context, int numUrls) {
-        if (sUploadAllowed) {
+        if (LibraryLoader.isInitialized()) {
             RecordHistogram.recordCountHistogram(TOTAL_URLS_REFRESH_COUNTS, numUrls);
         } else {
             storeValue(context, TOTAL_URLS_REFRESH_COUNTS, numUrls);
@@ -246,13 +246,8 @@ public class PhysicalWebUma {
 
     /**
      * Uploads metrics that we have deferred for uploading.
-     * Additionally, this method will cause future stat records not to be deferred and instead
-     * uploaded immediately.
      */
     public static void uploadDeferredMetrics() {
-        // If uploads have been explicitely requested, they are now allowed.
-        sUploadAllowed = true;
-
         // Read the metrics.
         SharedPreferences prefs = ContextUtils.getAppSharedPreferences();
         if (prefs.getBoolean(HAS_DEFERRED_METRICS_KEY, false)) {
@@ -293,7 +288,7 @@ public class PhysicalWebUma {
     }
 
     private static void handleAction(Context context, String key) {
-        if (sUploadAllowed) {
+        if (LibraryLoader.isInitialized()) {
             RecordUserAction.record(key);
         } else {
             storeAction(context, key);
@@ -301,7 +296,7 @@ public class PhysicalWebUma {
     }
 
     private static void handleTime(Context context, String key, long duration, TimeUnit tu) {
-        if (sUploadAllowed) {
+        if (LibraryLoader.isInitialized()) {
             RecordHistogram.recordTimesHistogram(key, duration, tu);
         } else {
             storeValue(context, key, duration);
@@ -309,7 +304,7 @@ public class PhysicalWebUma {
     }
 
     private static void handleEnum(Context context, String key, int value, int boundary) {
-        if (sUploadAllowed) {
+        if (LibraryLoader.isInitialized()) {
             RecordHistogram.recordEnumeratedHistogram(key, value, boundary);
         } else {
             storeValue(context, key, value);