Broke out layout metric information from ViewsDelegate to LayoutProvider

chrome/browser/ui/views/chrome_views_delegate.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_CHROME_VIEWS_DELEGATE_H_
 #define CHROME_BROWSER_UI_VIEWS_CHROME_VIEWS_DELEGATE_H_
 
 #include "base/callback.h"
 #include "base/compiler_specific.h"
 #include "base/location.h"
 #include "base/macros.h"
 #include "build/build_config.h"
 #include "ui/accessibility/ax_enums.h"
 #include "ui/views/views_delegate.h"
 
 class ScopedKeepAlive;
 
 class ChromeViewsDelegate : public views::ViewsDelegate {
  public:
   ChromeViewsDelegate();
   ~ChromeViewsDelegate() override;
 
-  static ChromeViewsDelegate* GetInstance();
-
   // views::ViewsDelegate:
   void SaveWindowPlacement(const views::Widget* window,
                            const std::string& window_name,
                            const gfx::Rect& bounds,
                            ui::WindowShowState show_state) override;
   bool GetSavedWindowPlacement(const views::Widget* widget,
                                const std::string& window_name,
                                gfx::Rect* bounds,
                                ui::WindowShowState* show_state) const override;
   void NotifyAccessibilityEvent(views::View* view,
@@ skipping 18 matching lines @@
   void AddRef() override;
   void ReleaseRef() override;
   void OnBeforeWidgetInit(
       views::Widget::InitParams* params,
       views::internal::NativeWidgetDelegate* delegate) override;
   ui::ContextFactory* GetContextFactory() override;
   ui::ContextFactoryPrivate* GetContextFactoryPrivate() override;
   std::string GetApplicationName() override;
   scoped_refptr<base::TaskRunner> GetBlockingPoolTaskRunner() override;
 
-  gfx::Insets GetInsetsMetric(views::InsetsMetric metric) const override;
-  int GetDistanceMetric(views::DistanceMetric metric) const override;
-  const views::TypographyProvider& GetTypographyProvider() const override;
-
-  static int GetDefaultDistanceMetric(views::DistanceMetric metric);
-
  private:
 #if defined(OS_WIN)
   typedef std::map<HMONITOR, int> AppbarAutohideEdgeMap;
 
   // Callback on main thread with the edges. |returned_edges| is the value that
   // was returned from the call to GetAutohideEdges() that initiated the lookup.
   void OnGotAppbarAutohideEdges(const base::Closure& callback,
                                 HMONITOR monitor,
                                 int returned_edges,
                                 int edges);
 #endif
 
 #if defined(OS_CHROMEOS)
   // Called from GetSavedWindowPlacement() on ChromeOS to adjust the bounds.
   void AdjustSavedWindowPlacementChromeOS(const views::Widget* widget,
                                           gfx::Rect* bounds) const;
 #endif
 
-  int InternalGetDefaultDistanceMetric(views::DistanceMetric metric) const;
-
   // Function to retrieve default opacity value mainly based on platform
   // and desktop context.
   views::Widget::InitParams::WindowOpacity GetOpacityForInitParams(
       const views::Widget::InitParams& params);
 
   views::NativeWidget* CreateNativeWidget(
       views::Widget::InitParams* params,
       views::internal::NativeWidgetDelegate* delegate);
 
   // |ChromeViewsDelegate| exposes a |RefCounted|-like interface, but //chrome
   // uses |ScopedKeepAlive|s to manage lifetime. We manage an internal counter
   // to do that translation.
   unsigned int ref_count_ = 0u;
 
   std::unique_ptr<ScopedKeepAlive> keep_alive_;
 
 #if defined(OS_WIN)
   AppbarAutohideEdgeMap appbar_autohide_edge_map_;
   // If true we're in the process of notifying a callback from
   // GetAutohideEdges().start a new query.
-  bool in_autohide_edges_callback_;
+  bool in_autohide_edges_callback_ = false;
 
-  base::WeakPtrFactory<ChromeViewsDelegate> weak_factory_;
+  base::WeakPtrFactory<ChromeViewsDelegate> weak_factory_{this};
 #endif
 
   DISALLOW_COPY_AND_ASSIGN(ChromeViewsDelegate);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_CHROME_VIEWS_DELEGATE_H_