Update device permissions dialog ui for Chrome apps and extensions

chrome/browser/ui/views/chooser_content_view.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 "chrome/browser/ui/views/chooser_content_view.h"
 
 #include "base/memory/ptr_util.h"
 #include "base/numerics/safe_conversions.h"
 #include "chrome/grit/generated_resources.h"
 #include "ui/base/l10n/l10n_util.h"
@@ skipping 69 matching lines @@
       IDS_BLUETOOTH_DEVICE_CHOOSER_TURN_ON_BLUETOOTH_LINK_TEXT);
   size_t offset = 0;
   base::string16 text = l10n_util::GetStringFUTF16(
       IDS_BLUETOOTH_DEVICE_CHOOSER_TURN_ADAPTER_OFF, link_text, &offset);
   turn_adapter_off_help_ = new views::StyledLabel(text, this);
   turn_adapter_off_help_->AddStyleRange(
       gfx::Range(0, link_text.size()),
       views::StyledLabel::RangeStyleInfo::CreateForLink());
   turn_adapter_off_help_->SetVisible(false);
   AddChildView(turn_adapter_off_help_);
-  footnote_link_ = base::MakeUnique<views::StyledLabel>(help_text_, this);
-  footnote_link_->set_owned_by_client();
-  footnote_link_->AddStyleRange(
-      help_text_range_, views::StyledLabel::RangeStyleInfo::CreateForLink());
 }
 
 ChooserContentView::~ChooserContentView() {
   chooser_controller_->set_view(nullptr);
   table_view_->SetObserver(nullptr);
   table_view_->SetModel(nullptr);
 }
 
 gfx::Size ChooserContentView::GetPreferredSize() const {
   return gfx::Size(kChooserWidth, kChooserHeight);
@@ skipping 99 matching lines @@
   UpdateTableView();
   table_view_->SetVisible(enabled);
   turn_adapter_off_help_->SetVisible(!enabled);
 
   throbber_->Stop();
   throbber_->SetVisible(false);
 
   if (enabled) {
     SetGetHelpAndReScanLink();
   } else {
+    DCHECK(footnote_link_);
     footnote_link_->SetText(help_text_);
     footnote_link_->AddStyleRange(
         help_text_range_, views::StyledLabel::RangeStyleInfo::CreateForLink());
   }
 
   if (GetWidget() && GetWidget()->GetRootView())
     GetWidget()->GetRootView()->Layout();
 }
 
 void ChooserContentView::OnRefreshStateChanged(bool refreshing) {
@@ skipping 10 matching lines @@
   bool throbber_visible =
       refreshing && (chooser_controller_->NumOptions() == 0);
   table_view_->SetVisible(!throbber_visible);
   throbber_->SetVisible(throbber_visible);
   if (throbber_visible)
     throbber_->Start();
   else
     throbber_->Stop();
 
   if (refreshing) {
+    DCHECK(footnote_link_);
     footnote_link_->SetText(help_and_scanning_text_);
     footnote_link_->AddStyleRange(
         help_text_range_, views::StyledLabel::RangeStyleInfo::CreateForLink());
   } else {
     SetGetHelpAndReScanLink();
   }
 
   if (GetWidget() && GetWidget()->GetRootView())
     GetWidget()->GetRootView()->Layout();
 }
@@ skipping 24 matching lines @@
   return button == ui::DIALOG_BUTTON_OK
              ? chooser_controller_->GetOkButtonLabel()
              : l10n_util::GetStringUTF16(IDS_DEVICE_CHOOSER_CANCEL_BUTTON_TEXT);
 }
 
 bool ChooserContentView::IsDialogButtonEnabled(ui::DialogButton button) const {
   return button != ui::DIALOG_BUTTON_OK ||
          !table_view_->selection_model().empty();
 }
 
+views::StyledLabel* ChooserContentView::footnote_link() {
+  if (chooser_controller_->ShouldShowFootnoteView()) {
+    footnote_link_ = base::MakeUnique<views::StyledLabel>(help_text_, this);
+    footnote_link_->set_owned_by_client();
+    footnote_link_->AddStyleRange(
+        help_text_range_, views::StyledLabel::RangeStyleInfo::CreateForLink());
+  }
+
+  return footnote_link_.get();
+}
+
 void ChooserContentView::Accept() {
   std::vector<size_t> indices(
       table_view_->selection_model().selected_indices().begin(),
       table_view_->selection_model().selected_indices().end());
   chooser_controller_->Select(indices);
 }
 
 void ChooserContentView::Cancel() {
   chooser_controller_->Cancel();
 }
 
 void ChooserContentView::Close() {
   chooser_controller_->Close();
 }
 
 void ChooserContentView::UpdateTableView() {
   if (chooser_controller_->NumOptions() == 0) {
     table_view_->OnModelChanged();
     table_view_->SetEnabled(false);
   } else {
     table_view_->SetEnabled(true);
   }
 }
 
 void ChooserContentView::SetGetHelpAndReScanLink() {
+  DCHECK(footnote_link_);
   footnote_link_->SetText(help_and_re_scan_text_);
   footnote_link_->AddStyleRange(
       help_text_range_, views::StyledLabel::RangeStyleInfo::CreateForLink());
   footnote_link_->AddStyleRange(
       re_scan_text_range_, views::StyledLabel::RangeStyleInfo::CreateForLink());
 }