Extract content dependency from keyboard code

ash/test/test_keyboard_ui.cc

Index: ash/test/test_keyboard_ui.cc
diff --git a/ash/test/test_keyboard_ui.cc b/ash/test/test_keyboard_ui.cc
new file mode 100644
index 0000000000000000000000000000000000000000..b99266c2b7e2f3b179bf7d60de30b3d8131df7aa
--- /dev/null
+++ b/ash/test/test_keyboard_ui.cc
@@ -0,0 +1,43 @@
+// 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.
+
+#include "ash/test/test_keyboard_ui.h"
+
+#include "ash/shell.h"
+#include "ash/shell_delegate.h"
+#include "ash/wm/window_util.h"
+#include "ui/aura/window.h"
+#include "ui/aura/window_tree_host.h"
+#include "ui/base/ime/mock_input_method.h"
+
+namespace ash {
+
+TestKeyboardUI::TestKeyboardUI() {}
+TestKeyboardUI::~TestKeyboardUI() {}
+
+bool TestKeyboardUI::HasKeyboardWindow() const {
+  return keyboard_;
+}
+
+aura::Window* TestKeyboardUI::GetKeyboardWindow() {
+  if (!keyboard_) {
+    keyboard_.reset(new aura::Window(&delegate_));
+    keyboard_->Init(ui::LAYER_NOT_DRAWN);
+  }
+  return keyboard_.get();
+}
+
+ui::InputMethod* TestKeyboardUI::GetInputMethod() {
+  aura::Window* active_window = wm::GetActiveWindow();
+  aura::Window* root_window = active_window ? active_window->GetRootWindow()
+                                            : Shell::GetPrimaryRootWindow();
+  return root_window->GetHost()->GetInputMethod();
+}
+
+void TestKeyboardUI::SetUpdateInputType(ui::TextInputType type) {}
+void TestKeyboardUI::ReloadKeyboardIfNeeded() {}
+void TestKeyboardUI::InitInsets(const gfx::Rect& keyboard_bounds) {}
+void TestKeyboardUI::ResetInsets() {}
+
+}  // namespace ash