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components/html_viewer/document_resource_waiter.cc

Index: components/html_viewer/document_resource_waiter.cc
diff --git a/components/html_viewer/document_resource_waiter.cc b/components/html_viewer/document_resource_waiter.cc
deleted file mode 100644
index c7bbececa9684c99960457bacb1635da5fc2080a..0000000000000000000000000000000000000000
--- a/components/html_viewer/document_resource_waiter.cc
+++ /dev/null
@@ -1,243 +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 "components/html_viewer/document_resource_waiter.h"
-
-#include <utility>
-
-#include "components/html_viewer/global_state.h"
-#include "components/html_viewer/html_document.h"
-#include "components/html_viewer/html_frame_tree_manager.h"
-#include "components/mus/public/cpp/window.h"
-
-using web_view::mojom::WindowConnectType;
-
-namespace html_viewer {
-
-DocumentResourceWaiter::DocumentResourceWaiter(GlobalState* global_state,
-                                               mojo::URLResponsePtr response,
-                                               HTMLDocument* document)
-    : global_state_(global_state),
-      document_(document),
-      response_(std::move(response)),
-      root_(nullptr),
-      change_id_(0u),
-      window_id_(0u),
-      window_connect_type_(web_view::mojom::WindowConnectType::USE_NEW),
-      frame_client_binding_(this),
-      is_ready_(false),
-      waiting_for_change_id_(false),
-      target_frame_tree_(nullptr) {}
-
-DocumentResourceWaiter::~DocumentResourceWaiter() {
-  if (root_)
-    root_->RemoveObserver(this);
-  if (target_frame_tree_)
-    target_frame_tree_->RemoveObserver(this);
-}
-
-void DocumentResourceWaiter::Release(
-    mojo::InterfaceRequest<web_view::mojom::FrameClient>* frame_client_request,
-    web_view::mojom::FramePtr* frame,
-    mojo::Array<web_view::mojom::FrameDataPtr>* frame_data,
-    uint32_t* change_id,
-    uint32_t* window_id,
-    WindowConnectType* window_connect_type,
-    OnConnectCallback* on_connect_callback) {
-  DCHECK(is_ready_);
-  *frame_client_request = std::move(frame_client_request_);
-  *frame = std::move(frame_);
-  *frame_data = std::move(frame_data_);
-  *change_id = change_id_;
-  *window_id = window_id_;
-  *window_connect_type = window_connect_type_;
-  *on_connect_callback = on_connect_callback_;
-}
-
-mojo::URLResponsePtr DocumentResourceWaiter::ReleaseURLResponse() {
-  return std::move(response_);
-}
-
-void DocumentResourceWaiter::SetRoot(mus::Window* root) {
-  DCHECK(!root_);
-  root_ = root;
-  root_->AddObserver(this);
-  UpdateIsReady();
-}
-
-void DocumentResourceWaiter::Bind(
-    mojo::InterfaceRequest<web_view::mojom::FrameClient> request) {
-  if (frame_client_binding_.is_bound() || !frame_data_.is_null()) {
-    DVLOG(1) << "Request for FrameClient after already supplied one";
-    return;
-  }
-  frame_client_binding_.Bind(std::move(request));
-}
-
-void DocumentResourceWaiter::UpdateIsReady() {
-  if (is_ready_)
-    return;
-
-  // See description of |waiting_for_change_id_| for details.
-  if (waiting_for_change_id_) {
-    if (target_frame_tree_->change_id() == change_id_) {
-      is_ready_ = true;
-      waiting_for_change_id_ = false;
-      document_->Load();
-    }
-    return;
-  }
-
-  // The first portion of ready is when we have received OnConnect()
-  // (|frame_data_| is valid) and we have a window with valid metrics. The
-  // window is not necessary is WindowConnectType is USE_EXISTING, which means
-  // the
-  // application is not asked for a ViewTreeClient. The metrics are necessary
-  // to initialize ResourceBundle. If USE_EXISTING is true, it means a Window
-  // has already been provided to another HTMLDocument and there is no need to
-  // wait for metrics.
-  bool is_ready =
-      (!frame_data_.is_null() &&
-       ((window_connect_type_ ==
-         web_view::mojom::WindowConnectType::USE_EXISTING) ||
-        (root_ && root_->viewport_metrics().device_pixel_ratio != 0.0f)));
-  if (is_ready) {
-    HTMLFrameTreeManager* frame_tree =
-        HTMLFrameTreeManager::FindFrameTreeWithRoot(frame_data_[0]->frame_id);
-    // Once we've received OnConnect() and the window (if necessary), we
-    // determine which HTMLFrameTreeManager the new frame ends up in. If there
-    // is an existing HTMLFrameTreeManager then we must wait for the change_id
-    // supplied to OnConnect() to be <= that of the HTMLFrameTreeManager's
-    // change_id. If we did not wait for the change id to be <= then the
-    // structure of the tree is not in the expected state and it's possible the
-    // frame communicated in OnConnect() does not exist yet.
-    if (frame_tree && change_id_ > frame_tree->change_id()) {
-      waiting_for_change_id_ = true;
-      target_frame_tree_ = frame_tree;
-      target_frame_tree_->AddObserver(this);
-    } else {
-      is_ready_ = true;
-      document_->Load();
-    }
-  }
-}
-
-void DocumentResourceWaiter::OnConnect(
-    web_view::mojom::FramePtr frame,
-    uint32_t change_id,
-    uint32_t window_id,
-    WindowConnectType window_connect_type,
-    mojo::Array<web_view::mojom::FrameDataPtr> frame_data,
-    int64_t navigation_start_time_ticks,
-    const OnConnectCallback& callback) {
-  DCHECK(frame_data_.is_null());
-  change_id_ = change_id;
-  window_id_ = window_id;
-  window_connect_type_ = window_connect_type;
-  frame_ = std::move(frame);
-  frame_data_ = std::move(frame_data);
-  navigation_start_time_ =
-      base::TimeTicks::FromInternalValue(navigation_start_time_ticks);
-  on_connect_callback_ = callback;
-  CHECK(frame_data_.size() > 0u);
-  frame_client_request_ = frame_client_binding_.Unbind();
-  UpdateIsReady();
-}
-
-void DocumentResourceWaiter::OnFrameAdded(
-    uint32_t change_id,
-    web_view::mojom::FrameDataPtr frame_data) {
-  // It is assumed we receive OnConnect() (which unbinds) before anything else.
-  NOTREACHED();
-}
-
-void DocumentResourceWaiter::OnFrameRemoved(uint32_t change_id,
-                                            uint32_t frame_id) {
-  // It is assumed we receive OnConnect() (which unbinds) before anything else.
-  NOTREACHED();
-}
-
-void DocumentResourceWaiter::OnFrameClientPropertyChanged(
-    uint32_t frame_id,
-    const mojo::String& name,
-    mojo::Array<uint8_t> new_value) {
-  // It is assumed we receive OnConnect() (which unbinds) before anything else.
-  NOTREACHED();
-}
-
-void DocumentResourceWaiter::OnPostMessageEvent(
-    uint32_t source_frame_id,
-    uint32_t target_frame_id,
-    web_view::mojom::HTMLMessageEventPtr event) {
-  // It is assumed we receive OnConnect() (which unbinds) before anything else.
-  NOTREACHED();
-}
-
-void DocumentResourceWaiter::OnWillNavigate(
-    const mojo::String& origin,
-    const OnWillNavigateCallback& callback) {
-  // It is assumed we receive OnConnect() (which unbinds) before anything else.
-  NOTREACHED();
-}
-
-void DocumentResourceWaiter::OnFrameLoadingStateChanged(uint32_t frame_id,
-                                                        bool loading) {
-  // It is assumed we receive OnConnect() (which unbinds) before anything else.
-  NOTREACHED();
-}
-
-void DocumentResourceWaiter::OnDispatchFrameLoadEvent(uint32_t frame_id) {
-  // It is assumed we receive OnConnect() (which unbinds) before anything else.
-  NOTREACHED();
-}
-
-void DocumentResourceWaiter::Find(int32_t request_id,
-                                  const mojo::String& search_text,
-                                  web_view::mojom::FindOptionsPtr options,
-                                  bool wrap_within_frame,
-                                  const FindCallback& callback) {
-  // It is assumed we receive OnConnect() (which unbinds) before anything else.
-  NOTREACHED();
-}
-
-void DocumentResourceWaiter::StopFinding(bool clear_selection) {
-  // It is assumed we receive OnConnect() (which unbinds) before anything else.
-  NOTREACHED();
-}
-
-void DocumentResourceWaiter::HighlightFindResults(
-    int32_t request_id,
-    const mojo::String& search_test,
-    web_view::mojom::FindOptionsPtr options,
-    bool reset) {
-  // It is assumed we receive OnConnect() (which unbinds) before anything else.
-  NOTREACHED();
-}
-
-void DocumentResourceWaiter::StopHighlightingFindResults() {
-  // It is assumed we receive OnConnect() (which unbinds) before anything else.
-  NOTREACHED();
-}
-
-void DocumentResourceWaiter::OnWindowViewportMetricsChanged(
-    mus::Window* window,
-    const mus::mojom::ViewportMetrics& old_metrics,
-    const mus::mojom::ViewportMetrics& new_metrics) {
-  UpdateIsReady();
-}
-
-void DocumentResourceWaiter::OnWindowDestroyed(mus::Window* window) {
-  root_->RemoveObserver(this);
-  root_ = nullptr;
-}
-
-void DocumentResourceWaiter::OnHTMLFrameTreeManagerChangeIdAdvanced() {
-  UpdateIsReady();
-}
-
-void DocumentResourceWaiter::OnHTMLFrameTreeManagerDestroyed() {
-  document_->Destroy();  // This destroys us.
-}
-
-}  // namespace html_viewer