Support link hovering.

services/navigation/view_impl.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 "services/navigation/view_impl.h"
 
 #include "base/strings/utf_string_conversions.h"
 #include "components/mus/public/cpp/window_tree_client.h"
 #include "content/public/browser/interstitial_page.h"
 #include "content/public/browser/interstitial_page_delegate.h"
@@ skipping 77 matching lines @@
                                         new InterstitialPageDelegate(html));
   interstitial->Show();
 }
 
 void ViewImpl::HideInterstitial() {
   // TODO(beng): this is not quite right.
   if (web_view_->GetWebContents()->ShowingInterstitialPage())
     web_view_->GetWebContents()->GetInterstitialPage()->Proceed();
 }
 
+void ViewImpl::SetResizerSize(const gfx::Size& size) {
+  resizer_size_ = size;
+}
+
 void ViewImpl::AddNewContents(content::WebContents* source,
                               content::WebContents* new_contents,
                               WindowOpenDisposition disposition,
                               const gfx::Rect& initial_rect,
                               bool user_gesture,
                               bool* was_blocked) {
   mojom::ViewClientPtr client;
   mojom::ViewPtr view;
   mojom::ViewRequest view_request = GetProxy(&view);
   client_->ViewCreated(std::move(view), GetProxy(&client),
@@ skipping 26 matching lines @@
                                   base::UTF16ToUTF8(source->GetTitle()),
                                   source->GetController().CanGoBack(),
                                   source->GetController().CanGoForward());
 }
 
 void ViewImpl::LoadProgressChanged(content::WebContents* source,
                                    double progress) {
   client_->LoadProgressChanged(progress);
 }
 
+void ViewImpl::UpdateTargetURL(content::WebContents* source, const GURL& url) {
+  client_->UpdateHoverURL(url);
+}
+
+gfx::Rect ViewImpl::GetRootWindowResizerRect() const {
+  gfx::Rect bounds = web_view_->GetLocalBounds();
+  return gfx::Rect(bounds.right() - resizer_size_.width(),
+                   bounds.bottom() - resizer_size_.height(),
+                   resizer_size_.width(), resizer_size_.height());
+}
+
 void ViewImpl::OnEmbed(mus::Window* root) {
   DCHECK(!widget_.get());
   widget_.reset(new views::Widget);
   views::Widget::InitParams params(
       views::Widget::InitParams::TYPE_WINDOW_FRAMELESS);
   params.ownership = views::Widget::InitParams::WIDGET_OWNS_NATIVE_WIDGET;
   params.delegate = this;
   params.native_widget = new views::NativeWidgetMus(
       widget_.get(), connector_, root, mus::mojom::SurfaceType::DEFAULT);
   widget_->Init(params);
   widget_->Show();
 }
 
 void ViewImpl::OnWindowTreeClientDestroyed(mus::WindowTreeClient* client) {}
 void ViewImpl::OnEventObserved(const ui::Event& event, mus::Window* target) {}
 
 views::View* ViewImpl::GetContentsView() {
   return web_view_;
 }
 
 views::Widget* ViewImpl::GetWidget() {
   return web_view_->GetWidget();
 }
 
 const views::Widget* ViewImpl::GetWidget() const {
   return web_view_->GetWidget();
 }
 
 }  // navigation