Remove all blimp engine code

blimp/engine/feature/engine_render_widget_feature.cc

Index: blimp/engine/feature/engine_render_widget_feature.cc
diff --git a/blimp/engine/feature/engine_render_widget_feature.cc b/blimp/engine/feature/engine_render_widget_feature.cc
deleted file mode 100644
index 5bf47a12d747e096639455394cd6d9131cbfa887..0000000000000000000000000000000000000000
--- a/blimp/engine/feature/engine_render_widget_feature.cc
+++ /dev/null
@@ -1,400 +0,0 @@
-// 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 "blimp/engine/feature/engine_render_widget_feature.h"
-
-#include "base/numerics/safe_conversions.h"
-#include "base/strings/utf_string_conversions.h"
-#include "base/threading/thread_task_runner_handle.h"
-#include "blimp/common/create_blimp_message.h"
-#include "blimp/common/proto/blimp_message.pb.h"
-#include "blimp/common/proto/compositor.pb.h"
-#include "blimp/common/proto/input.pb.h"
-#include "blimp/common/proto/render_widget.pb.h"
-#include "blimp/net/input_message_converter.h"
-#include "content/public/browser/render_widget_host.h"
-#include "content/public/browser/render_widget_host_view.h"
-#include "content/public/common/form_field_data.h"
-#include "net/base/net_errors.h"
-#include "third_party/WebKit/public/platform/WebInputEvent.h"
-#include "ui/events/event.h"
-#include "ui/events/keycodes/dom/dom_code.h"
-
-namespace blimp {
-namespace engine {
-
-EngineRenderWidgetFeature::EngineRenderWidgetFeature(SettingsManager* settings)
-    : settings_manager_(settings), weak_factory_(this) {
-  DCHECK(settings_manager_);
-  settings_manager_->AddObserver(this);
-}
-
-EngineRenderWidgetFeature::~EngineRenderWidgetFeature() {
-  DCHECK(settings_manager_);
-  settings_manager_->RemoveObserver(this);
-}
-
-void EngineRenderWidgetFeature::set_render_widget_message_sender(
-    std::unique_ptr<BlimpMessageProcessor> message_processor) {
-  DCHECK(message_processor);
-  render_widget_message_sender_ = std::move(message_processor);
-}
-
-void EngineRenderWidgetFeature::set_input_message_sender(
-    std::unique_ptr<BlimpMessageProcessor> message_processor) {
-  DCHECK(message_processor);
-  input_message_sender_ = std::move(message_processor);
-}
-
-void EngineRenderWidgetFeature::set_ime_message_sender(
-    std::unique_ptr<BlimpMessageProcessor> message_processor) {
-  DCHECK(message_processor);
-  ime_message_sender_ = std::move(message_processor);
-}
-
-void EngineRenderWidgetFeature::set_compositor_message_sender(
-    std::unique_ptr<BlimpMessageProcessor> message_processor) {
-  DCHECK(message_processor);
-  compositor_message_sender_ = std::move(message_processor);
-}
-
-void EngineRenderWidgetFeature::OnRenderWidgetCreated(
-    const int tab_id,
-    content::RenderWidgetHost* render_widget_host) {
-  DCHECK(render_widget_host);
-
-  int render_widget_id = AddRenderWidget(tab_id, render_widget_host);
-  DCHECK_GT(render_widget_id, 0);
-
-  RenderWidgetMessage* render_widget_message;
-  std::unique_ptr<BlimpMessage> blimp_message =
-      CreateBlimpMessage(&render_widget_message, tab_id);
-  render_widget_message->set_type(RenderWidgetMessage::CREATED);
-  render_widget_message->set_render_widget_id(render_widget_id);
-
-  render_widget_message_sender_->ProcessMessage(std::move(blimp_message),
-                                                net::CompletionCallback());
-}
-
-void EngineRenderWidgetFeature::OnRenderWidgetInitialized(
-    const int tab_id,
-    content::RenderWidgetHost* render_widget_host) {
-  DCHECK(render_widget_host);
-
-  int render_widget_id = GetRenderWidgetId(tab_id, render_widget_host);
-  DCHECK_GT(render_widget_id, 0);
-
-  RenderWidgetMessage* render_widget_message;
-  std::unique_ptr<BlimpMessage> blimp_message =
-      CreateBlimpMessage(&render_widget_message, tab_id);
-  render_widget_message->set_type(RenderWidgetMessage::INITIALIZE);
-  render_widget_message->set_render_widget_id(render_widget_id);
-
-  render_widget_message_sender_->ProcessMessage(std::move(blimp_message),
-                                                net::CompletionCallback());
-}
-
-void EngineRenderWidgetFeature::OnRenderWidgetDeleted(
-    const int tab_id,
-    content::RenderWidgetHost* render_widget_host) {
-  DCHECK(render_widget_host);
-
-  int render_widget_id = DeleteRenderWidget(tab_id, render_widget_host);
-  DCHECK_GT(render_widget_id, 0);
-
-  RenderWidgetMessage* render_widget_message;
-  std::unique_ptr<BlimpMessage> blimp_message =
-      CreateBlimpMessage(&render_widget_message, tab_id);
-  render_widget_message->set_type(RenderWidgetMessage::DELETED);
-  render_widget_message->set_render_widget_id(render_widget_id);
-
-  render_widget_message_sender_->ProcessMessage(std::move(blimp_message),
-                                                net::CompletionCallback());
-}
-
-void EngineRenderWidgetFeature::SendCompositorMessage(
-    const int tab_id,
-    content::RenderWidgetHost* render_widget_host,
-    const std::vector<uint8_t>& message) {
-  CompositorMessage* compositor_message;
-  std::unique_ptr<BlimpMessage> blimp_message =
-      CreateBlimpMessage(&compositor_message, tab_id);
-
-  int render_widget_id = GetRenderWidgetId(tab_id, render_widget_host);
-  DCHECK_GT(render_widget_id, 0);
-
-  compositor_message->set_render_widget_id(render_widget_id);
-  // TODO(dtrainor): Move the transport medium to std::string* and use
-  // set_allocated_payload.
-  compositor_message->set_payload(message.data(),
-                                  base::checked_cast<int>(message.size()));
-
-  compositor_message_sender_->ProcessMessage(std::move(blimp_message),
-                                                net::CompletionCallback());
-}
-
-void EngineRenderWidgetFeature::SendShowImeRequest(
-    const int tab_id,
-    content::RenderWidgetHost* render_widget_host,
-    const content::FormFieldData& field) {
-  ImeMessage* ime_message;
-  std::unique_ptr<BlimpMessage> blimp_message =
-      CreateBlimpMessage(&ime_message, tab_id);
-
-  int render_widget_id = GetRenderWidgetId(tab_id, render_widget_host);
-  DCHECK_GT(render_widget_id, 0);
-  ime_message->set_render_widget_id(render_widget_id);
-  ime_message->set_type(ImeMessage::SHOW_IME);
-  ime_message->set_text_input_type(
-      InputMessageConverter::TextInputTypeToProto(field.text_input_type));
-  ime_message->set_ime_text(field.text);
-  // TODO(shaktisahu): Add remaining fields to proto.
-
-  ime_message_sender_->ProcessMessage(std::move(blimp_message),
-                                      net::CompletionCallback());
-}
-
-void EngineRenderWidgetFeature::SendHideImeRequest(
-    const int tab_id,
-    content::RenderWidgetHost* render_widget_host) {
-  ImeMessage* ime_message;
-  std::unique_ptr<BlimpMessage> blimp_message =
-      CreateBlimpMessage(&ime_message, tab_id);
-
-  int render_widget_id = GetRenderWidgetId(tab_id, render_widget_host);
-  DCHECK_GT(render_widget_id, 0);
-  ime_message->set_render_widget_id(render_widget_id);
-  ime_message->set_type(ImeMessage::HIDE_IME);
-
-  ime_message_sender_->ProcessMessage(std::move(blimp_message),
-                                      net::CompletionCallback());
-}
-
-void EngineRenderWidgetFeature::SetDelegate(
-    const int tab_id,
-    RenderWidgetMessageDelegate* delegate) {
-  DCHECK(!FindDelegate(tab_id));
-  delegates_[tab_id] = delegate;
-}
-
-void EngineRenderWidgetFeature::RemoveDelegate(const int tab_id) {
-  DelegateMap::iterator it = delegates_.find(tab_id);
-  if (it != delegates_.end())
-    delegates_.erase(it);
-}
-
-void EngineRenderWidgetFeature::ProcessMessage(
-    std::unique_ptr<BlimpMessage> message,
-    const net::CompletionCallback& callback) {
-  DCHECK(!callback.is_null());
-  DCHECK(message->feature_case() == BlimpMessage::kRenderWidget ||
-         message->feature_case() == BlimpMessage::kIme ||
-         message->feature_case() == BlimpMessage::kInput ||
-         message->feature_case() == BlimpMessage::kCompositor);
-
-  int target_tab_id = message->target_tab_id();
-
-  RenderWidgetMessageDelegate* delegate = FindDelegate(target_tab_id);
-  DCHECK(delegate);
-
-  content::RenderWidgetHost* render_widget_host = nullptr;
-
-  switch (message->feature_case()) {
-    case BlimpMessage::kInput:
-      render_widget_host = GetRenderWidgetHost(target_tab_id,
-                              message->input().render_widget_id());
-      if (render_widget_host) {
-        std::unique_ptr<blink::WebGestureEvent> event =
-            input_message_converter_.ProcessMessage(message->input());
-        if (event)
-          delegate->OnWebGestureEvent(render_widget_host, std::move(event));
-      }
-      break;
-    case BlimpMessage::kCompositor:
-      render_widget_host = GetRenderWidgetHost(target_tab_id,
-                                    message->compositor().render_widget_id());
-      if (render_widget_host) {
-        std::vector<uint8_t> payload(message->compositor().payload().size());
-        memcpy(payload.data(),
-               message->compositor().payload().data(),
-               payload.size());
-        delegate->OnCompositorMessageReceived(render_widget_host, payload);
-      }
-      break;
-    case BlimpMessage::kIme:
-      DCHECK(message->ime().type() == ImeMessage::SET_TEXT);
-      render_widget_host =
-          GetRenderWidgetHost(target_tab_id, message->ime().render_widget_id());
-      if (render_widget_host && render_widget_host->GetView()) {
-        SetTextFromIME(render_widget_host, message->ime().ime_text(),
-                       message->ime().auto_submit());
-
-        // TODO(shaktisahu): Remove this fake HIDE_IME request once the blimp
-        // IME design is completed (crbug/661328).
-        base::ThreadTaskRunnerHandle::Get()->PostDelayedTask(
-            FROM_HERE,
-            base::Bind(&EngineRenderWidgetFeature::SendHideImeRequest,
-                       weak_factory_.GetWeakPtr(), target_tab_id,
-                       render_widget_host),
-            base::TimeDelta::FromMilliseconds(1500));
-      }
-      break;
-    default:
-      NOTREACHED();
-  }
-
-  callback.Run(net::OK);
-}
-
-void EngineRenderWidgetFeature::OnWebPreferencesChanged() {
-  for (TabMap::iterator tab_it = tabs_.begin(); tab_it != tabs_.end();
-       tab_it++) {
-    RenderWidgetMaps render_widget_maps = tab_it->second;
-    RenderWidgetToIdMap render_widget_to_id = render_widget_maps.first;
-    for (RenderWidgetToIdMap::iterator it = render_widget_to_id.begin();
-         it != render_widget_to_id.end(); it++) {
-      content::RenderWidgetHost* render_widget_host = it->first;
-      content::RenderViewHost* render_view_host =
-          content::RenderViewHost::From(render_widget_host);
-      if (render_view_host)
-        render_view_host->OnWebkitPreferencesChanged();
-    }
-  }
-}
-
-void EngineRenderWidgetFeature::SetTextFromIME(
-    content::RenderWidgetHost* render_widget_host,
-    std::string text,
-    bool auto_submit) {
-  ui::TextInputClient* client =
-      render_widget_host->GetView()->GetTextInputClient();
-  DCHECK(client);
-
-  if (!client || client->GetTextInputType() == ui::TEXT_INPUT_TYPE_NONE)
-    return;
-
-  // Clear out any existing text first and then insert new text entered
-  // through IME.
-  gfx::Range text_range;
-  client->GetTextRange(&text_range);
-  client->ExtendSelectionAndDelete(text_range.length(), text_range.length());
-
-  client->InsertText(base::UTF8ToUTF16(text));
-
-  if (auto_submit) {
-    // Send a synthetic key event to the renderer notifying that user has hit
-    // Return key. This should submit the current form.
-    ui::KeyEvent press(ui::ET_KEY_PRESSED, ui::VKEY_RETURN, ui::DomCode::ENTER,
-                       0);
-    ui::KeyEvent char_event('\r', ui::VKEY_RETURN, 0);
-    ui::KeyEvent release(ui::ET_KEY_RELEASED, ui::VKEY_RETURN,
-                         ui::DomCode::ENTER, 0);
-    render_widget_host->ForwardKeyboardEvent(
-        content::NativeWebKeyboardEvent(press));
-    render_widget_host->ForwardKeyboardEvent(
-        content::NativeWebKeyboardEvent(char_event));
-    render_widget_host->ForwardKeyboardEvent(
-        content::NativeWebKeyboardEvent(release));
-  }
-}
-
-EngineRenderWidgetFeature::RenderWidgetMessageDelegate*
-EngineRenderWidgetFeature::FindDelegate(const int tab_id) {
-  DelegateMap::const_iterator it = delegates_.find(tab_id);
-  if (it != delegates_.end())
-    return it->second;
-  return nullptr;
-}
-
-int EngineRenderWidgetFeature::AddRenderWidget(
-    const int tab_id,
-    content::RenderWidgetHost* render_widget_host) {
-  TabMap::iterator tab_it = tabs_.find(tab_id);
-  if (tab_it == tabs_.end()) {
-    tabs_[tab_id] = std::make_pair(RenderWidgetToIdMap(),
-                                   IdToRenderWidgetMap());
-    tab_it = tabs_.find(tab_id);
-  }
-
-  int render_widget_id = next_widget_id_.GetNext() + 1;
-
-  RenderWidgetMaps* render_widget_maps = &tab_it->second;
-
-  RenderWidgetToIdMap* render_widget_to_id = &render_widget_maps->first;
-  IdToRenderWidgetMap* id_to_render_widget = &render_widget_maps->second;
-
-  DCHECK(render_widget_to_id->find(render_widget_host) ==
-      render_widget_to_id->end());
-  DCHECK(id_to_render_widget->find(render_widget_id) ==
-      id_to_render_widget->end());
-
-  (*render_widget_to_id)[render_widget_host] = render_widget_id;
-  (*id_to_render_widget)[render_widget_id] = render_widget_host;
-
-  return render_widget_id;
-}
-
-int EngineRenderWidgetFeature::DeleteRenderWidget(
-    const int tab_id,
-    content::RenderWidgetHost* render_widget_host) {
-  TabMap::iterator tab_it = tabs_.find(tab_id);
-  DCHECK(tab_it != tabs_.end());
-
-  RenderWidgetMaps* render_widget_maps = &tab_it->second;
-
-  RenderWidgetToIdMap* render_widget_to_id = &render_widget_maps->first;
-  RenderWidgetToIdMap::iterator widget_to_id_it =
-      render_widget_to_id->find(render_widget_host);
-  DCHECK(widget_to_id_it != render_widget_to_id->end());
-
-  int render_widget_id = widget_to_id_it->second;
-  render_widget_to_id->erase(widget_to_id_it);
-
-  IdToRenderWidgetMap* id_to_render_widget = &render_widget_maps->second;
-  IdToRenderWidgetMap::iterator id_to_widget_it =
-      id_to_render_widget->find(render_widget_id);
-  DCHECK(id_to_widget_it->second == render_widget_host);
-  id_to_render_widget->erase(id_to_widget_it);
-
-  return render_widget_id;
-}
-
-int EngineRenderWidgetFeature::GetRenderWidgetId(
-    const int tab_id,
-    content::RenderWidgetHost* render_widget_host) {
-  TabMap::const_iterator tab_it = tabs_.find(tab_id);
-  if (tab_it == tabs_.end())
-    return 0;
-
-  const RenderWidgetMaps* render_widget_maps = &tab_it->second;
-  const RenderWidgetToIdMap* render_widget_to_id = &render_widget_maps->first;
-
-  RenderWidgetToIdMap::const_iterator widget_it =
-      render_widget_to_id->find(render_widget_host);
-  if (widget_it == render_widget_to_id->end())
-    return 0;
-
-  return widget_it->second;
-}
-
-content::RenderWidgetHost* EngineRenderWidgetFeature::GetRenderWidgetHost(
-    const int tab_id,
-    const int render_widget_id) {
-  TabMap::const_iterator tab_it = tabs_.find(tab_id);
-  if (tab_it == tabs_.end())
-    return nullptr;
-
-  const RenderWidgetMaps* render_widget_maps = &tab_it->second;
-  const IdToRenderWidgetMap* id_to_render_widget = &render_widget_maps->second;
-
-  IdToRenderWidgetMap::const_iterator widget_id_it =
-      id_to_render_widget->find(render_widget_id);
-  if (widget_id_it == id_to_render_widget->end())
-    return nullptr;
-
-  return widget_id_it->second;
-}
-
-}  // namespace engine
-}  // namespace blimp