Revert "Revert "Support Emoji keyboard""

Window resizing junkiness is addressed in I605e657c9468

This reverts commit aabc97233826da69edbadfc7c1465a505a1fe2ec.

Change-Id: I0bc0f1ad9a90799e643fe9ec35f5b4bbe94eee0d
diff --git a/java/res/xml/key_styles_common.xml b/java/res/xml/key_styles_common.xml
index dabe1e7..c1c2c3e 100644
--- a/java/res/xml/key_styles_common.xml
+++ b/java/res/xml/key_styles_common.xml
@@ -67,30 +67,6 @@
         latin:backgroundType="functional" />
     <include
         latin:keyboardLayout="@xml/key_styles_enter" />
-    <switch>
-        <!-- Shift + Enter in textMultiLine field. -->
-        <case
-            latin:isMultiLine="true"
-            latin:keyboardLayoutSetElement="alphabetManualShifted|alphabetShiftLockShifted"
-        >
-            <key-style
-                latin:styleName="enterKeyStyle"
-                latin:parentStyle="shiftEnterKeyStyle" />
-        </case>
-        <!-- Smiley in textShortMessage field.
-             Overrides common enter key style. -->
-        <case
-            latin:mode="im"
-        >
-            <key-style
-                latin:styleName="enterKeyStyle"
-                latin:keyLabel=":-)"
-                latin:keyOutputText=":-) "
-                latin:keyLabelFlags="hasPopupHint"
-                latin:moreKeys="!text/more_keys_for_smiley"
-                latin:backgroundType="functional" />
-        </case>
-    </switch>
     <key-style
         latin:styleName="spaceKeyStyle"
         latin:code="!code/key_space"
@@ -129,7 +105,8 @@
         latin:styleName="emojiKeyStyle"
         latin:code="!code/key_emoji"
         latin:keyIcon="!icon/emoji_key"
-        latin:keyActionFlags="noKeyPreview" />
+        latin:keyActionFlags="noKeyPreview"
+        latin:backgroundType="functional" />
     <key-style
         latin:styleName="tabKeyStyle"
         latin:code="!code/key_tab"
diff --git a/java/res/xml/row_symbols4.xml b/java/res/xml/row_symbols4.xml
index 5c15da6..bea139a 100644
--- a/java/res/xml/row_symbols4.xml
+++ b/java/res/xml/row_symbols4.xml
@@ -50,7 +50,7 @@
             latin:keyboardLayout="@xml/key_symbols_period"
             latin:backgroundType="functional" />
         <Key
-            latin:keyStyle="enterKeyStyle"
+            latin:keyStyle="emojiKeyStyle"
             latin:keyWidth="fillRight" />
     </Row>
 </merge>