[Android] Add unit tests for SelectActionBar appearance

The SelectActionBar currently lacks test coverage. Add several test
cases covering the appearance of the bar when interacting with an input
field.

Review URL: https://codereview.chromium.org/506423003

Cr-Commit-Position: refs/heads/master@{#292248}

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

@@ -205,6 +205,29 @@ public class ImeTest extends ContentShellTestBase {
         assertWaitForSelectActionBarStatus(false);
     }
 
+    @SmallTest
+    @Feature({"TextInput"})
+    public void testSelectActionBarClearedOnTappingInput() throws Exception {
+        commitText(mConnection, "Sample Text", 1);
+        DOMUtils.longPressNode(this, mContentViewCore, "input_text");
+        assertWaitForKeyboardStatus(true);
+        assertWaitForSelectActionBarStatus(true);
+        DOMUtils.clickNode(this, mContentViewCore, "input_text");
+        assertWaitForSelectActionBarStatus(false);
+    }
+
+    @SmallTest
+    @Feature({"TextInput"})
+    public void testSelectActionBarClearedOnTappingOutsideInput() throws Exception {
+        commitText(mConnection, "Sample Text", 1);
+        DOMUtils.longPressNode(this, mContentViewCore, "input_text");
+        assertWaitForKeyboardStatus(true);
+        assertWaitForSelectActionBarStatus(true);
+        DOMUtils.clickNode(this, mContentViewCore, "input_radio");
+        assertWaitForKeyboardStatus(false);
+        assertWaitForSelectActionBarStatus(false);
+    }
+
     @SmallTest
     @Feature({"TextInput"})
     public void testImeCut() throws Exception {