Remove the 2-level input method system & InputMethodBridge.

ui/aura/test/test_window_delegate.h

Index: ui/aura/test/test_window_delegate.h
diff --git a/ui/aura/test/test_window_delegate.h b/ui/aura/test/test_window_delegate.h
index fd4f5f88cba770cc3cef16428d20dd7ccdd60707..6d12a8c909fd612e473fa1c6008d26b7eeaaa1bf 100644
--- a/ui/aura/test/test_window_delegate.h
+++ b/ui/aura/test/test_window_delegate.h
@@ -10,7 +10,6 @@
 #include "base/compiler_specific.h"
 #include "third_party/skia/include/core/SkColor.h"
 #include "ui/aura/window_delegate.h"
-#include "ui/base/ime/dummy_text_input_client.h"
 #include "ui/events/keycodes/keyboard_codes.h"
 #include "ui/gfx/geometry/rect.h"
 
@@ -47,7 +46,6 @@ class TestWindowDelegate : public WindowDelegate {
   gfx::Size GetMaximumSize() const override;
   void OnBoundsChanged(const gfx::Rect& old_bounds,
                        const gfx::Rect& new_bounds) override;
-  ui::TextInputClient* GetFocusedTextInputClient() override;
   gfx::NativeCursor GetCursor(const gfx::Point& point) override;
   int GetNonClientComponent(const gfx::Point& point) const override;
   bool ShouldDescendIntoChildForEventHandling(
@@ -68,7 +66,6 @@ class TestWindowDelegate : public WindowDelegate {
   bool delete_on_destroyed_;
   gfx::Size minimum_size_;
   gfx::Size maximum_size_;
-  ui::DummyTextInputClient text_input_client_;
   bool can_focus_;
 
   DISALLOW_COPY_AND_ASSIGN(TestWindowDelegate);