Revert of Disable ImeTest testLongPressInputWhileComposingText due to flakiness

content/public/android/javatests/src/org/chromium/content/browser/input/ImeTest.java

Index: content/public/android/javatests/src/org/chromium/content/browser/input/ImeTest.java
diff --git a/content/public/android/javatests/src/org/chromium/content/browser/input/ImeTest.java b/content/public/android/javatests/src/org/chromium/content/browser/input/ImeTest.java
index 8b16ed9338effead8f88e12988076d94a94d47c4..561a2d967cce810899fa1b1e553fb6777ec9f9e2 100644
--- a/content/public/android/javatests/src/org/chromium/content/browser/input/ImeTest.java
+++ b/content/public/android/javatests/src/org/chromium/content/browser/input/ImeTest.java
@@ -22,7 +22,6 @@
 import android.view.inputmethod.InputConnection;
 
 import org.chromium.base.ThreadUtils;
-import org.chromium.base.test.util.DisabledTest;
 import org.chromium.base.test.util.Feature;
 import org.chromium.base.test.util.UrlUtils;
 import org.chromium.content.browser.ContentViewCore;
@@ -536,9 +535,8 @@
         assertWaitForSelectActionBarStatus(true);
     }
 
-    // @SmallTest
-    // @Feature({"TextInput"})
-    @DisabledTest
+    @SmallTest
+    @Feature({"TextInput"})
     public void testLongPressInputWhileComposingText() throws Exception {
         assertWaitForSelectActionBarStatus(false);
         setComposingText("Sample Text", 1);