Change ChooserController::Observer to ChooserController::View

chrome/browser/ui/cocoa/chooser_content_view_cocoa.mm

 // 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.
 
 #import "chrome/browser/ui/cocoa/chooser_content_view_cocoa.h"
 
 #include <algorithm>
 
 #include "base/macros.h"
 #include "base/strings/sys_string_conversions.h"
@@ skipping 22 matching lines @@
 const CGFloat kVerticalPadding = 10.0f;
 
 // Separator alpha value.
 const CGFloat kSeparatorAlphaValue = 0.6f;
 
 // Separator height.
 const CGFloat kSeparatorHeight = 1.0f;
 
 }  // namespace
 
-class TableViewController : public ChooserController::Observer {
+class TableViewController : public ChooserController::View {
  public:
   TableViewController(ChooserController* chooser_controller,
                       NSTableView* table_view);
   ~TableViewController() override;
 
-  // ChooserController::Observer:
+  // ChooserController::View:
   void OnOptionsInitialized() override;
   void OnOptionAdded(size_t index) override;
   void OnOptionRemoved(size_t index) override;
   void OnAdapterEnabledChanged(bool enabled) override;
   void OnRefreshStateChanged(bool refreshing) override;
 
   void UpdateTableView();
 
  private:
   ChooserController* chooser_controller_;
   NSTableView* table_view_;
 
   DISALLOW_COPY_AND_ASSIGN(TableViewController);
 };
 
 TableViewController::TableViewController(ChooserController* chooser_controller,
                                          NSTableView* table_view)
     : chooser_controller_(chooser_controller), table_view_(table_view) {
   DCHECK(chooser_controller_);
   DCHECK(table_view_);
-  chooser_controller_->set_observer(this);
+  chooser_controller_->set_view(this);
 }
 
 TableViewController::~TableViewController() {
-  chooser_controller_->set_observer(nullptr);
+  chooser_controller_->set_view(nullptr);
 }
 
 void TableViewController::OnOptionsInitialized() {
   UpdateTableView();
 }
 
 void TableViewController::OnOptionAdded(size_t index) {
   UpdateTableView();
 }
 
@@ skipping 282 matching lines @@
 
 - (void)close {
   chooserController_->Close();
 }
 
 - (void)onHelpPressed:(id)sender {
   chooserController_->OpenHelpCenterUrl();
 }
 
 @end