Added missing test cases related to long pressing on input field.

IME Visibility status check test case is missing when we do long
press on different kind of empty and non-empty input fields. This patch
takes care of adding missing test cases for the same.

BUG=

Review URL: https://codereview.chromium.org/516843005

Cr-Commit-Position: refs/heads/master@{#292423}

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

@@ -218,6 +218,30 @@ public class ImeTest extends ContentShellTestBase {
         assertWaitForSelectActionBarStatus(false);
     }
 
+    @SmallTest
+    @Feature({"TextInput"})
+    public void testImeNotShownOnLongPressingDifferentEmptyInputs() throws Exception {
+        DOMUtils.focusNode(mContentViewCore, "input_radio");
+        DOMUtils.longPressNode(this, mContentViewCore, "input_text");
+        assertWaitForKeyboardStatus(false);
+        DOMUtils.longPressNode(this, mContentViewCore, "textarea");
+        assertWaitForKeyboardStatus(false);
+    }
+
+    @SmallTest
+    @Feature({"TextInput"})
+    public void testImeStaysOnLongPressingDifferentNonEmptyInputs() throws Exception {
+        DOMUtils.focusNode(mContentViewCore, "input_text");
+        assertWaitForKeyboardStatus(true);
+        commitText(mConnection, "Sample Text", 1);
+        DOMUtils.focusNode(mContentViewCore, "textarea");
+        commitText(mConnection, "Sample Text", 1);
+        DOMUtils.longPressNode(this, mContentViewCore, "input_text");
+        assertWaitForKeyboardStatus(true);
+        DOMUtils.longPressNode(this, mContentViewCore, "textarea");
+        assertWaitForKeyboardStatus(true);
+    }
+
     @SmallTest
     @Feature({"TextInput"})
     public void testImeCut() throws Exception {