[ImportantSites] JNI bindings for CBD filtering and Important Sites.

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 13699c37e7d814af2b968478e621842c17e1cf1b..54c95d299d77fb5e562e1026c1c7f5abf9fe0211 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
@@ -691,6 +691,12 @@ public final class PrefServiceBridge {
         nativeClearBrowsingData(dataTypes);
     }
 
+    public void clearBrowsingDataExcludingOrigins(

[newt (away), 2016/03/09 05:40:02]

javadoc for all public methods

Also, how will this method be used? In particular, where will the list of
origins come from? IIUC, the intended use for this is to allow clearing data
from all sites except "important" sites. If that's the case, would it be simpler
or better just to have a method called
"clearBrowsingDataExcludingImportantOrigins()", which doesn't take a list of
origins but rather builds that list on the C++ side?

+            OnClearBrowsingDataListener listener, int[] dataTypes, String[] origins) {

[newt (away), 2016/03/09 05:40:02]

Side note: Could you rename this listener to "ClearBrowsingDataListener"?
"OnClearBrowsingDataListener" is not idiomatic naming.

+        assert mClearBrowsingDataListener == null;
+        nativeClearBrowingDataExcludingOrigins(listener, dataTypes, origins);
+    }
+
     /*
      * Whether browser history can be deleted by the user.
      */
@@ -1021,6 +1027,8 @@ public final class PrefServiceBridge {
     private native int nativeGetBrowsingDataDeletionTimePeriod();
     private native void nativeSetBrowsingDataDeletionTimePeriod(int timePeriod);
     private native void nativeClearBrowsingData(int[] dataTypes);
+    private native void nativeClearBrowingDataExcludingOrigins(
+            OnClearBrowsingDataListener listener, int[] dataTypes, String[] origins);
     private native boolean nativeCanDeleteBrowsingHistory();
     private native void nativeSetAllowCookiesEnabled(boolean allow);
     private native void nativeSetBlockThirdPartyCookiesEnabled(boolean enabled);