Fixed the inconsistent behavior when long pressing on editable area in Chrome.

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

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 package org.chromium.content.browser.input;
 
 import android.app.Activity;
 import android.content.ClipData;
 import android.content.ClipboardManager;
 import android.content.Context;
@@ skipping 145 matching lines @@
         DOMUtils.longPressNode(this, mContentViewCore, "input_text");
         selectAll(mImeAdapter);
         copy(mImeAdapter);
         assertWaitForKeyboardStatus(true);
         assertEquals(11, Selection.getSelectionEnd(mContentViewCore.getEditableForTest()));
         assertEquals(11, Selection.getSelectionEnd(mContentViewCore.getEditableForTest()));
     }
 
     @SmallTest
     @Feature({"TextInput"})
+    public void testImeNotShownOnLongPressingEmptyInput() throws Exception {
+        DOMUtils.focusNode(mContentViewCore, "input_radio");
+        DOMUtils.longPressNode(this, mContentViewCore, "input_text");
+        assertWaitForKeyboardStatus(false);
+        commitText(mConnection, "Sample Text", 1);
+        DOMUtils.longPressNode(this, mContentViewCore, "input_text");
+        assertWaitForKeyboardStatus(true);
+    }
+
+    @SmallTest
+    @Feature({"TextInput"})
     public void testImeCut() throws Exception {
         commitText(mConnection, "snarful", 1);
         waitAndVerifyEditableCallback(mConnection.mImeUpdateQueue, 1, "snarful", 7, 7, -1, -1);
 
         setSelection(mConnection, 1, 5);
         waitAndVerifyEditableCallback(mConnection.mImeUpdateQueue, 2, "snarful", 1, 5, -1, -1);
 
         cut(mImeAdapter);
         waitAndVerifyEditableCallback(mConnection.mImeUpdateQueue, 3, "sul", 1, 1, -1, -1);
 
@@ skipping 583 matching lines @@
         public void assertEqualState(String text, int selectionStart, int selectionEnd,
                 int compositionStart, int compositionEnd) {
             assertEquals("Text did not match", text, mText);
             assertEquals("Selection start did not match", selectionStart, mSelectionStart);
             assertEquals("Selection end did not match", selectionEnd, mSelectionEnd);
             assertEquals("Composition start did not match", compositionStart, mCompositionStart);
             assertEquals("Composition end did not match", compositionEnd, mCompositionEnd);
         }
     }
 }