views: support dialog width snapping once and for all

chrome/browser/ui/views/harmony/chrome_layout_provider.h

Index: chrome/browser/ui/views/harmony/chrome_layout_provider.h
diff --git a/chrome/browser/ui/views/harmony/chrome_layout_provider.h b/chrome/browser/ui/views/harmony/chrome_layout_provider.h
index 1fe25cf55ac59827185aaba46a432b0d6cbcd230..b78c1558250887e7b10ae7e4d7efc842ec164fcf 100644
--- a/chrome/browser/ui/views/harmony/chrome_layout_provider.h
+++ b/chrome/browser/ui/views/harmony/chrome_layout_provider.h
@@ -50,12 +50,6 @@ enum ChromeDistanceMetric {
   DISTANCE_UNRELATED_CONTROL_VERTICAL_LARGE,
 };
 
-enum class DialogWidth {
-  SMALL,
-  MEDIUM,
-  LARGE,
-};
-
 class ChromeLayoutProvider : public views::LayoutProvider {
  public:
   ChromeLayoutProvider() {}
@@ -64,8 +58,8 @@ class ChromeLayoutProvider : public views::LayoutProvider {
   static ChromeLayoutProvider* Get();
   static std::unique_ptr<views::LayoutProvider> CreateLayoutProvider();
 
+  // views::LayoutProvider:
   int GetDistanceMetric(int metric) const override;
-
   const views::TypographyProvider& GetTypographyProvider() const override;
 
   // Returns the alignment used for control labels in a GridLayout; for example,
@@ -92,10 +86,6 @@ class ChromeLayoutProvider : public views::LayoutProvider {
   // TODO(pkasting): Fix callers and remove this.
   virtual bool IsHarmonyMode() const;
 
-  // Returns the preferred width in DIPs for a dialog of the specified |width|.
-  // May return 0 if the dialog has no preferred width.
-  virtual int GetDialogPreferredWidth(DialogWidth width) const;
-
  private:
   DISALLOW_COPY_AND_ASSIGN(ChromeLayoutProvider);
 };