Refactor Emoji tab indicators to refer keyboard theme

Bug: 14419121
Change-Id: I7086923fff153039c2d011bbccbfd04eb687a76a
diff --git a/java/res/values/themes-common.xml b/java/res/values/themes-common.xml
index df26fb3..c5d3f55 100644
--- a/java/res/values/themes-common.xml
+++ b/java/res/values/themes-common.xml
@@ -110,6 +110,8 @@
     <!-- Though {@link EmojiPalettesView} doesn't extend {@link KeyboardView}, some views inside it,
          for instance delete button, need themed {@link KeyboardView} attributes. -->
     <style name="EmojiPalettesView" />
+    <style name="EmojiTabWidget" />
+    <style name="EmojiCategoryPageIndicatorView" />
     <style name="MoreKeysKeyboard" />
     <style
         name="MoreKeysKeyboardView"