Make keyword hint view ("press tab to search foo.com") clickable.

chrome/browser/ui/views/location_bar/location_bar_view.h

 // Copyright (c) 2012 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.
 
 #ifndef CHROME_BROWSER_UI_VIEWS_LOCATION_BAR_LOCATION_BAR_VIEW_H_
 #define CHROME_BROWSER_UI_VIEWS_LOCATION_BAR_LOCATION_BAR_VIEW_H_
 
 #include <stddef.h>
 
 #include <string>
 #include <vector>
 
 #include "base/compiler_specific.h"
 #include "base/macros.h"
 #include "chrome/browser/extensions/extension_context_menu_model.h"
 #include "chrome/browser/ui/location_bar/location_bar.h"
 #include "chrome/browser/ui/omnibox/chrome_omnibox_edit_controller.h"
 #include "chrome/browser/ui/views/dropdown_bar_host.h"
 #include "chrome/browser/ui/views/dropdown_bar_host_delegate.h"
 #include "chrome/browser/ui/views/extensions/extension_popup.h"
 #include "chrome/browser/ui/views/omnibox/omnibox_view_views.h"
 #include "components/prefs/pref_member.h"
 #include "components/search_engines/template_url_service_observer.h"
 #include "components/security_state/core/security_state.h"
 #include "components/zoom/zoom_event_manager_observer.h"
 #include "ui/gfx/animation/animation_delegate.h"
 #include "ui/gfx/animation/slide_animation.h"
 #include "ui/gfx/font.h"
 #include "ui/gfx/geometry/rect.h"
+#include "ui/views/controls/button/button.h"
 #include "ui/views/drag_controller.h"
 
 class CommandUpdater;
 class ContentSettingBubbleModelDelegate;
 class ContentSettingImageView;
 class GURL;
 class KeywordHintView;
 class LocationIconView;
 class ManagePasswordsIconViews;
 class Profile;
@@ skipping 20 matching lines @@
 //
 /////////////////////////////////////////////////////////////////////////////
 class LocationBarView : public LocationBar,
                         public LocationBarTesting,
                         public views::View,
                         public views::DragController,
                         public gfx::AnimationDelegate,
                         public ChromeOmniboxEditController,
                         public DropdownBarHostDelegate,
                         public TemplateURLServiceObserver,
-                        public zoom::ZoomEventManagerObserver {
+                        public zoom::ZoomEventManagerObserver,
+                        public views::ButtonListener {
  public:
   class Delegate {
    public:
     // Should return the current web contents.
     virtual content::WebContents* GetWebContents() = 0;
 
     virtual ToolbarModel* GetToolbarModel() = 0;
     virtual const ToolbarModel* GetToolbarModel() const = 0;
 
     // Returns ContentSettingBubbleModelDelegate.
@@ skipping 148 matching lines @@
 
   // ChromeOmniboxEditController:
   void UpdateWithoutTabRestore() override;
   ToolbarModel* GetToolbarModel() override;
   content::WebContents* GetWebContents() override;
 
   // ZoomEventManagerObserver:
   // Updates the view for the zoom icon when default zoom levels change.
   void OnDefaultZoomLevelChanged() override;
 
+  // views::ButtonListener:
+  void ButtonPressed(views::Button* sender, const ui::Event& event) override;
+
  private:
   using ContentSettingViews = std::vector<ContentSettingImageView*>;
 
   // Helper for GetMinimumWidth().  Calculates the incremental minimum width
   // |view| should add to the trailing width after the omnibox.
   int IncrementalMinimumWidth(views::View* view) const;
 
   // The border color, drawn on top of the toolbar.
   SkColor GetBorderColor() const;
 
@@ skipping 171 matching lines @@
   // Add/RemoveObserver calls.
   TemplateURLService* template_url_service_;
 
   // Tracks this preference to determine whether bookmark editing is allowed.
   BooleanPrefMember edit_bookmarks_enabled_;
 
   DISALLOW_COPY_AND_ASSIGN(LocationBarView);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_LOCATION_BAR_LOCATION_BAR_VIEW_H_