Introduce ThreadedInputConnection behind a switch

content/public/android/java/src/org/chromium/content/browser/input/ChromiumBaseInputConnectionFactory.java

Index: content/public/android/java/src/org/chromium/content/browser/input/ChromiumBaseInputConnectionFactory.java
diff --git a/content/public/android/java/src/org/chromium/content/browser/input/ChromiumBaseInputConnectionFactory.java b/content/public/android/java/src/org/chromium/content/browser/input/ChromiumBaseInputConnectionFactory.java
new file mode 100644
index 0000000000000000000000000000000000000000..affcd024378c691c8dd3a6454f938a829e025628
--- /dev/null
+++ b/content/public/android/java/src/org/chromium/content/browser/input/ChromiumBaseInputConnectionFactory.java
@@ -0,0 +1,34 @@
+// Copyright 2015 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.text.Editable;
+import android.view.View;
+import android.view.inputmethod.EditorInfo;
+
+import org.chromium.base.CommandLine;
+import org.chromium.base.Log;
+import org.chromium.base.ThreadUtils;
+import org.chromium.content.common.ContentSwitches;
+
+/**
+ * Default factory for ChromiumBaseInputConnection classes.
+ */
+public class ChromiumBaseInputConnectionFactory {
+    public ChromiumBaseInputConnection get(
+            View view, ImeAdapter imeAdapter, Editable editable, EditorInfo outAttrs) {
+        if (ThreadUtils.runningOnUiThread()) {
+            if (CommandLine.getInstance().hasSwitch(ContentSwitches.USE_IME_THREAD)) {
+                Log.w("cr.Ime", "getHandler() failed to detect input method handler creation.");
+            } else {
+                Log.d("cr.Ime", "Using the old AdapterInputConnection...");
+            }
+            return new AdapterInputConnection(view, imeAdapter, editable, outAttrs);
+        } else {
+            Log.d("cr.Ime", "Creating ChromiumInputConnection...");
+            return new ChromiumInputConnection(view, imeAdapter, outAttrs);
+        }
+    }
+}