arc: Stop piggybacking "text input started" and "show virtual keyboard" events.

components/arc/ime/arc_ime_service.cc

 // Copyright 2016 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 "components/arc/ime/arc_ime_service.h"
 
 #include <utility>
 
 #include "base/logging.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 122 matching lines @@
 
 ////////////////////////////////////////////////////////////////////////////////
 // Overridden from arc::ArcImeBridge::Delegate
 
 void ArcImeService::OnTextInputTypeChanged(ui::TextInputType type) {
   if (ime_type_ == type)
     return;
   ime_type_ = type;
 
   ui::InputMethod* const input_method = GetInputMethod();
-  if (input_method) {
+  if (input_method)
     input_method->OnTextInputTypeChanged(this);
-    // TODO(crbug.com/581282): Remove this piggyback call when
-    // ImeInstance::ShowImeIfNeeded is wired to ARC.
-    if (input_method->GetTextInputClient() == this &&
-        ime_type_ != ui::TEXT_INPUT_TYPE_NONE) {
-      input_method->ShowImeIfNeeded();
-    }
-  }
 }
 
 void ArcImeService::OnCursorRectChanged(const gfx::Rect& rect) {
   if (cursor_rect_ == rect)
     return;
   cursor_rect_ = rect;
 
   ui::InputMethod* const input_method = GetInputMethod();
   if (input_method)
     input_method->OnCaretBoundsChanged(this);
@@ skipping 170 matching lines @@
     base::i18n::TextDirection direction) {
   return false;
 }
 
 bool ArcImeService::IsTextEditCommandEnabled(
     ui::TextEditCommand command) const {
   return false;
 }
 
 }  // namespace arc