Adding CrHome-specific implementation for home page tile.

chrome/android/java/src/org/chromium/chrome/browser/suggestions/MostVisitedSites.java

Index: chrome/android/java/src/org/chromium/chrome/browser/suggestions/MostVisitedSites.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/suggestions/MostVisitedSites.java b/chrome/android/java/src/org/chromium/chrome/browser/suggestions/MostVisitedSites.java
index 9c981b232b4b57cc4f978483d64bf3f2510ba5bb..57972ee42e859276060a0df0cc807e715f38fe06 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/suggestions/MostVisitedSites.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/suggestions/MostVisitedSites.java
@@ -41,6 +41,29 @@ interface MostVisitedSites {
     }
 
     /**
+     * An interface to provide {@link MostVisitedSites} with platform-specific home page data.
+     */
+    interface Client {

[dgn, 2017/05/25 10:33:33]

nit: why not HomePageClient like in c++ ?

[fhorschig, 2017/05/30 10:25:21]

Done.

+        /**
+         * @return Returns whether a home page is active and set.

[dgn, 2017/05/25 10:33:32]

Don't add "Returns" at the beginning of a @return text. The javadoc parser
already adds that. If you're using Android Studio or Eclipse for Java you can
preview the javadoc right there.

[fhorschig, 2017/05/30 10:25:21]

Thanks! (3x Done.)

+         */
+        @CalledByNative("Client")
+        boolean isHomePageEnabled();
+
+        /**
+         * @return Returns whether the new tab page was set as home page.
+         */
+        @CalledByNative("Client")
+        boolean isNewTabPageUsedAsHomePage();
+
+        /**
+         * @return Returns the raw URL of the currently set home page.
+         */
+        @CalledByNative("Client")
+        String getHomePageUrl();
+    }
+
+    /**
      * This instance must not be used after calling destroy().
      */
     void destroy();