Limit display of the virtual keyboard to state changes triggered from a user gesture.

ui/base/ime/input_method_base.cc

 // Copyright (c) 2012 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 "ui/base/ime/input_method_base.h"
 
 #include "base/logging.h"
 #include "ui/base/ime/input_method_delegate.h"
 #include "ui/base/ime/input_method_observer.h"
 #include "ui/base/ime/text_input_client.h"
@@ skipping 71 matching lines @@
 TextInputMode InputMethodBase::GetTextInputMode() const {
   TextInputClient* client = GetTextInputClient();
   return client ? client->GetTextInputMode() : TEXT_INPUT_MODE_DEFAULT;
 }
 
 bool InputMethodBase::CanComposeInline() const {
   TextInputClient* client = GetTextInputClient();
   return client ? client->CanComposeInline() : true;
 }
 
+void InputMethodBase::ShowVirtualKeyboard() {
+  FOR_EACH_OBSERVER(InputMethodObserver,
+                    observer_list_,
+                    OnShowVirtualKeyboard());
+}
+
 void InputMethodBase::AddObserver(InputMethodObserver* observer) {
   observer_list_.AddObserver(observer);
 }
 
 void InputMethodBase::RemoveObserver(InputMethodObserver* observer) {
   observer_list_.RemoveObserver(observer);
 }
 
 bool InputMethodBase::IsTextInputClientFocused(const TextInputClient* client) {
   return client && (client == GetTextInputClient());
@@ skipping 33 matching lines @@
   TextInputClient* old = text_input_client_;
   if (old == client)
     return;
   OnWillChangeFocusedClient(old, client);
   text_input_client_ = client;  // NULL allowed.
   OnDidChangeFocusedClient(old, client);
   NotifyTextInputStateChanged(text_input_client_);
 }
 
 }  // namespace ui