[Custom Tabs] Implement Bottombar

chrome/android/java/src/android/support/customtabs/CustomTabsIntent.java

Index: chrome/android/java/src/android/support/customtabs/CustomTabsIntent.java
diff --git a/chrome/android/java/src/android/support/customtabs/CustomTabsIntent.java b/chrome/android/java/src/android/support/customtabs/CustomTabsIntent.java
index 5f035bf3fbc6c77d27e90e6ed6ba5a4cbc1ebd89..d09b4bf1101b478cb9901f24987a93f994aa1f29 100644
--- a/chrome/android/java/src/android/support/customtabs/CustomTabsIntent.java
+++ b/chrome/android/java/src/android/support/customtabs/CustomTabsIntent.java
@@ -92,12 +92,61 @@ public class CustomTabsIntent {
             "android.support.customtabs.extra.EXIT_ANIMATION_BUNDLE";
 
     /**
+     * Extra bitmap that specifies the icon of the back button on the toolbar. If the client chooses

[Ian Wen, 2016/01/02 14:20:39]

These five constants are moved from CustomTabsIntentDataProvider.

+     * not to customize it, a default close button will be used.
+     */
+    public static final String EXTRA_CLOSE_BUTTON_ICON =
+            "android.support.customtabs.extra.CLOSE_BUTTON_ICON";
+
+    /**
+     * Extra int that specifies state for showing the page title. Default is showing only the domain
+     * and no information about the title.
+     */
+    public static final String EXTRA_TITLE_VISIBILITY_STATE =
+            "android.support.customtabs.extra.TITLE_VISIBILITY";
+
+    /**
+     * Don't show any title. Shows only the domain.
+     */
+    public static final int NO_TITLE = 0;
+
+    /**
+     * Shows the page title and the domain.
+     */
+    public static final int SHOW_PAGE_TITLE = 1;
+
+    /**
+     * Extra boolean that specifies whether the custom action button should be tinted. Default is
+     * false and the action button will not be tinted.
+     */
+    public static final String EXTRA_TINT_ACTION_BUTTON =
+            "android.support.customtabs.extra.TINT_ACTION_BUTTON";
+
+    /**
      * Boolean that specifies whether a default share button will be shown in the menu.
      */
     public static final String EXTRA_DEFAULT_SHARE_MENU_ITEM =
             "android.support.customtabs.extra.SHARE_MENU_ITEM";
 
     /**
+     * Extra that specifies the color of the bottom bar.
+     */
+    public static final String EXTRA_BOTTOM_BAR_COLOR =
+            "android.support.customtabs.extra.bottom_bar_color";
+
+    /**
+     * Use an {@code ArrayList<Bundle>} to specify bottom bar related params. There should be a
+     * separate {@link Bundle} for each bottom bar item.
+     */
+    public static final String EXTRA_BOTTOM_BAR_ITEMS =
+            "android.support.customtabs.extra.bottom_bar_items";
+
+    /**
+     * Key that specifies the button id for the bottom bar item.
+     */
+    public static final String KEY_ID = "android.support.customtabs.customaction.ID";
+
+    /**
      * Convenience method to create a VIEW intent without a session for the given package.
      * @param packageName The package name to set in the intent.
      * @param data        The data {@link Uri} to be used in the intent.