Use input method to control visibility of virtual keyboard

views/ime/text_input_type_tracker.cc

Index: views/ime/text_input_type_tracker.cc
diff --git a/views/ime/text_input_type_tracker.cc b/views/ime/text_input_type_tracker.cc
new file mode 100644
index 0000000000000000000000000000000000000000..83412be305b2ade07674565d6e96b63669c1571b
--- /dev/null
+++ b/views/ime/text_input_type_tracker.cc
@@ -0,0 +1,37 @@
+// Copyright (c) 2011 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.
+
+#include "views/ime/text_input_type_tracker.h"
+
+namespace views {
+
+void TextInputTypeTracker::AddTextInputTypeObserver(
+    TextInputTypeObserver* observer) {
+  text_input_type_observers_.AddObserver(observer);
+}
+
+void TextInputTypeTracker::RemoveTextInputTypeObserver(
+    TextInputTypeObserver* observer) {
+  text_input_type_observers_.RemoveObserver(observer);
+}
+
+void TextInputTypeTracker::OnTextInputTypeChanged(
+    ui::TextInputType type, Widget* widget) {
+  FOR_EACH_OBSERVER(TextInputTypeObserver,
+                    text_input_type_observers_,
+                    TextInputTypeChanged(type, widget));
+}
+
+TextInputTypeTracker::TextInputTypeTracker() {
+}
+
+TextInputTypeTracker::~TextInputTypeTracker() {
+}
+
+// static
+TextInputTypeTracker* TextInputTypeTracker::GetInstance() {
+  return Singleton<TextInputTypeTracker>::get();
+}
+
+}  // namespace views