Connect the "other forms of browsing history" frontend on Android to backend.

chrome/android/java/src/org/chromium/chrome/browser/preferences/PrefServiceBridge.java

Index: chrome/android/java/src/org/chromium/chrome/browser/preferences/PrefServiceBridge.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/preferences/PrefServiceBridge.java b/chrome/android/java/src/org/chromium/chrome/browser/preferences/PrefServiceBridge.java
index 381b475c7c400a90417dee405a9d81ab8f441937..25953f931889d2c80aead61edeec3b117f2d01d1 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/preferences/PrefServiceBridge.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/preferences/PrefServiceBridge.java
@@ -72,6 +72,33 @@ public final class PrefServiceBridge {
         }
     }
 
+    /**
+     * Interface for a class that is listening to clear browser data events.
+     */
+    public interface OnClearBrowsingDataListener {
+        public abstract void onBrowsingDataCleared();
+    }
+
+    /**
+     * Interface to a class that receives callbacks instructing it to inform the user about other
+     * forms of browsing history.
+     */
+    public interface OtherFormsOfBrowsingHistoryListener {
+        /**
+         * Called by the web history service when it discovers that other forms of browsing history
+         * exist.
+         */
+        @CalledByNative("OtherFormsOfBrowsingHistoryListener")
+        public abstract void enableDialogAboutOtherFormsOfBrowsingHistory();
+
+        /**
+         * Called by the web history service when the conditions for showing the dialog about
+         * other forms of browsing history are met.
+         */
+        @CalledByNative("OtherFormsOfBrowsingHistoryListener")
+        public abstract void showNoticeAboutOtherFormsOfBrowsingHistory();
+    }
+
     @CalledByNative
     private static AboutVersionStrings createAboutVersionStrings(String applicationVersion,
             String osVersion) {
@@ -653,13 +680,6 @@ public final class PrefServiceBridge {
     }
 
     /**
-     * Interface for a class that is listening to clear browser data events.
-     */
-    public interface OnClearBrowsingDataListener {
-        public abstract void onBrowsingDataCleared();
-    }
-
-    /**
      * Checks the state of deletion preference for a certain browsing data type.
      * @param dataType The requested browsing data type (from the shared enum
      *      {@link org.chromium.chrome.browser.BrowsingDataType}).
@@ -730,6 +750,16 @@ public final class PrefServiceBridge {
         }
     }
 
+    /**
+     * Requests that the web history service finds out if we should inform the user about the
+     * existence of other forms of browsing history. The response will be asynchronous, through
+     * {@link OtherFormsOfBrowsingHistoryListener}.
+     */
+    public void requestInfoAboutOtherFormsOfBrowsingHistory(
+            OtherFormsOfBrowsingHistoryListener listener) {
+        nativeRequestInfoAboutOtherFormsOfBrowsingHistory(listener);
+    }
+
     public void setAllowCookiesEnabled(boolean allow) {
         nativeSetAllowCookiesEnabled(allow);
     }
@@ -1021,6 +1051,8 @@ public final class PrefServiceBridge {
     private native int nativeGetBrowsingDataDeletionTimePeriod();
     private native void nativeSetBrowsingDataDeletionTimePeriod(int timePeriod);
     private native void nativeClearBrowsingData(int[] dataTypes, int timePeriod);
+    private native void nativeRequestInfoAboutOtherFormsOfBrowsingHistory(
+            OtherFormsOfBrowsingHistoryListener listener);
     private native boolean nativeCanDeleteBrowsingHistory();
     private native void nativeSetAllowCookiesEnabled(boolean allow);
     private native void nativeSetBackgroundSyncEnabled(boolean allow);