[MD] Share button code between find bar and download shelf

chrome/browser/ui/views/download/download_item_view_md.h

 // 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.
 //
 // A view that implements one download on the Download shelf.
 // Each DownloadItemViewMd contains an application icon, a text label
 // indicating the download's file name, a text label indicating the
 // download's status (such as the number of bytes downloaded so far)
 // and a button for canceling an in progress download, or opening
 // the completed download.
@@ skipping 17 matching lines @@
 #include "chrome/browser/download/download_item_model.h"
 #include "chrome/browser/icon_manager.h"
 #include "content/public/browser/download_item.h"
 #include "content/public/browser/download_manager.h"
 #include "ui/gfx/animation/animation_delegate.h"
 #include "ui/gfx/font_list.h"
 #include "ui/views/context_menu_controller.h"
 #include "ui/views/controls/button/button.h"
 #include "ui/views/view.h"
 
+class BarControlButton;
 class DownloadShelfView;
 class DownloadShelfContextMenuView;
 
 namespace extensions {
 class ExperienceSamplingEvent;
 }
 
 namespace gfx {
 class Image;
 class ImageSkia;
 class SlideAnimation;
 }
 
+namespace ui {
+class ThemeProvider;
+}
+
 namespace views {
 class ImageButton;
 class Label;
 class LabelButton;
 }
 
 // The DownloadItemView in MD style. This is copied from DownloadItemView,
 // which it should eventually replace.
 class DownloadItemViewMd : public views::ButtonListener,
                            public views::View,
                            public views::ContextMenuController,
                            public content::DownloadItem::Observer,
                            public gfx::AnimationDelegate {
  public:
   DownloadItemViewMd(content::DownloadItem* download,
                      DownloadShelfView* parent);
   ~DownloadItemViewMd() override;
 
   // Timer callback for handling animations
   void UpdateDownloadProgress();
   void StartDownloadProgress();
   void StopDownloadProgress();
 
+  // Returns the base color for text on this download item, based on |theme|.
+  static SkColor GetTextColorForThemeProvider(ui::ThemeProvider* theme);
+
   // IconManager::Client interface.
   void OnExtractIconComplete(gfx::Image* icon);
 
   // Returns the DownloadItem model object belonging to this item.
   content::DownloadItem* download() { return model_.download(); }
 
   // DownloadItem::Observer methods
   void OnDownloadUpdated(content::DownloadItem* download) override;
   void OnDownloadOpened(content::DownloadItem* download) override;
   void OnDownloadDestroyed(content::DownloadItem* download) override;
@@ skipping 114 matching lines @@
   // so that screenreaders can access the filename, status text, and
   // dangerous download warning message (if any).
   void UpdateAccessibleName();
 
   // Show/Hide/Reset |animation| based on the state transition specified by
   // |from| and |to|.
   void AnimateStateTransition(State from,
                               State to,
                               gfx::SlideAnimation* animation);
 
+  // Returns the base text color.
+  SkColor GetTextColor();
+
+  // Returns a slightly dimmed version of the base text color.
+  SkColor GetDimmedTextColor();
+
   // The download shelf that owns us.
   DownloadShelfView* shelf_;
 
   // Elements of our particular download
   base::string16 status_text_;
 
   // The font list used to print the file name and warning text.
   gfx::FontList font_list_;
 
   // The font list used to print the status text below the file name.
@@ skipping 39 matching lines @@
   scoped_ptr<gfx::SlideAnimation> complete_animation_;
 
   // Progress animation
   base::RepeatingTimer progress_timer_;
 
   // Dangerous mode buttons.
   views::LabelButton* save_button_;
   views::LabelButton* discard_button_;
 
   // The drop down button.
-  views::ImageButton* dropdown_button_;
+  BarControlButton* dropdown_button_;
 
   // Dangerous mode label.
   views::Label* dangerous_download_label_;
 
   // Whether the dangerous mode label has been sized yet.
   bool dangerous_download_label_sized_;
 
   // The size of the buttons.  Cached so animation works when hidden.
   mutable gfx::Size cached_button_size_;
 
@@ skipping 22 matching lines @@
   scoped_ptr<extensions::ExperienceSamplingEvent> sampling_event_;
 
   // Method factory used to delay reenabling of the item when opening the
   // downloaded file.
   base::WeakPtrFactory<DownloadItemViewMd> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(DownloadItemViewMd);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_DOWNLOAD_DOWNLOAD_ITEM_VIEW_MD_H_