Snackbar for promoting Data Saver to existing users

chrome/android/java/src/org/chromium/chrome/browser/net/spdyproxy/DataReductionProxySettings.java

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 package org.chromium.chrome.browser.net.spdyproxy;
 
 import android.content.Context;
 import android.net.Uri;
 import android.text.TextUtils;
 import android.webkit.URLUtil;
 
 import org.chromium.base.ContextUtils;
 import org.chromium.base.ThreadUtils;
 import org.chromium.base.VisibleForTesting;
 import org.chromium.base.annotations.CalledByNative;
+import org.chromium.chrome.browser.UrlConstants;
 
 import java.text.NumberFormat;
 import java.util.HashMap;
 import java.util.Locale;
 import java.util.Map;
 
 /**
  * Entry point to manage all data reduction proxy configuration details.
  */
 public class DataReductionProxySettings {
@@ skipping 102 matching lines @@
     /** Returns true if the SPDY proxy is allowed to be used. */
     public boolean isDataReductionProxyAllowed() {
         return nativeIsDataReductionProxyAllowed(mNativeDataReductionProxySettings);
     }
 
     /** Returns true if the SPDY proxy promo is allowed to be shown. */
     public boolean isDataReductionProxyPromoAllowed() {
         return nativeIsDataReductionProxyPromoAllowed(mNativeDataReductionProxySettings);
     }
 
+    /** Returns true if the snackbar promo is allowed to be shown. */
+    public boolean isSnackbarPromoAllowed(String url) {
+        return url.startsWith(UrlConstants.HTTP_SCHEME) && isDataReductionProxyEnabled()
+                && isDataReductionProxyPromoAllowed();
+    }
+
     /**
      * Sets the preference on whether to enable/disable the SPDY proxy. This will zero out the
      * data reduction statistics if this is the first time the SPDY proxy has been enabled.
      */
     public void setDataReductionProxyEnabled(Context context, boolean enabled) {
         ContextUtils.getAppSharedPreferences().edit()
                 .putBoolean(DATA_REDUCTION_ENABLED_PREF, enabled).apply();
         nativeSetDataReductionProxyEnabled(mNativeDataReductionProxySettings, enabled);
     }
 
@@ skipping 49 matching lines @@
 
     /**
      * Returns aggregate original and received content lengths.
      * @return The content lengths.
      */
     public ContentLengths getContentLengths() {
         return nativeGetContentLengths(mNativeDataReductionProxySettings);
     }
 
     /**
+     * Returns the total HTTP content length saved.
+     * @return The HTTP content length saved.
+     */
+    public long getTotalHttpContentLengthSaved() {
+        return nativeGetTotalHttpContentLengthSaved(mNativeDataReductionProxySettings);
+    }
+
+    /**
      * Retrieves the history of daily totals of bytes that would have been
      * received if no data reducing mechanism had been applied.
      * @return The history of daily totals
      */
     public long[] getOriginalNetworkStatsHistory() {
         return nativeGetDailyOriginalContentLengths(mNativeDataReductionProxySettings);
     }
 
     /**
      * Retrieves the history of daily totals of bytes that were received after
@@ skipping 85 matching lines @@
     private native void nativeSetLoFiLoadImageRequested(
             long nativeDataReductionProxySettingsAndroid);
     private native boolean nativeIsDataReductionProxyManaged(
             long nativeDataReductionProxySettingsAndroid);
     private native void nativeSetDataReductionProxyEnabled(
             long nativeDataReductionProxySettingsAndroid, boolean enabled);
     private native long nativeGetDataReductionLastUpdateTime(
             long nativeDataReductionProxySettingsAndroid);
     private native ContentLengths nativeGetContentLengths(
             long nativeDataReductionProxySettingsAndroid);
+    private native long nativeGetTotalHttpContentLengthSaved(
+            long nativeDataReductionProxySettingsAndroid);
     private native long[] nativeGetDailyOriginalContentLengths(
             long nativeDataReductionProxySettingsAndroid);
     private native long[] nativeGetDailyReceivedContentLengths(
             long nativeDataReductionProxySettingsAndroid);
     private native boolean nativeIsDataReductionProxyUnreachable(
             long nativeDataReductionProxySettingsAndroid);
     private native boolean nativeAreLoFiPreviewsEnabled(
             long nativeDataReductionProxySettingsAndroid);
     private native String nativeGetHttpProxyList(long nativeDataReductionProxySettingsAndroid);
     private native String nativeGetLastBypassEvent(long nativeDataReductionProxySettingsAndroid);
 }