Bug 1052026 - Add content description when creating action button in GeckoActionProvider. r=wesj

mobile/android/base/menu/MenuItemActionView.java

@@ -135,7 +135,7 @@ public class MenuItemActionView extends LinearLayout
         mMenuItem.setSubMenuIndicator(hasSubMenu);
     }
 
-    public void addActionButton(Drawable drawable) {
+    public void addActionButton(Drawable drawable, CharSequence label) {
         // If this is the first icon, retain the text.
         // If not, make the menu item an icon.
         final int count = mActionButtons.size();
@@ -145,6 +145,7 @@ public class MenuItemActionView extends LinearLayout
         if (drawable != null) {
             ImageButton button = new ImageButton(getContext(), null, R.attr.menuItemShareActionButtonStyle);
             button.setImageDrawable(drawable);
+            button.setContentDescription(label);
             button.setOnClickListener(this);
             button.setTag(count);
 

mobile/android/base/widget/GeckoActionProvider.java

@@ -105,7 +105,8 @@ public class GeckoActionProvider {
         }
 
         for (int i = 0; i < historySize; i++) {
-            view.addActionButton(dataModel.getActivity(i).loadIcon(packageManager));
+            view.addActionButton(dataModel.getActivity(i).loadIcon(packageManager), 
+                                 dataModel.getActivity(i).loadLabel(packageManager));
         }
 
         return view;