views: implement width snapping for DialogDelegateViews

chrome/browser/ui/views/profiles/user_manager_view.h

Index: chrome/browser/ui/views/profiles/user_manager_view.h
diff --git a/chrome/browser/ui/views/profiles/user_manager_view.h b/chrome/browser/ui/views/profiles/user_manager_view.h
index e140aab103dfe40a592d5fd87674d5b591a03a7e..79291d41fff111243a4aaf99ab5bfb358f1e3044 100644
--- a/chrome/browser/ui/views/profiles/user_manager_view.h
+++ b/chrome/browser/ui/views/profiles/user_manager_view.h
@@ -43,7 +43,7 @@ class UserManagerProfileDialogDelegate
   void OnDialogDestroyed();
 
   // views::DialogDelegate:
-  gfx::Size GetPreferredSize() const override;
+  gfx::Size GetUnsnappedPreferredSize() const override;
   bool CanResize() const override;
   bool CanMaximize() const override;
   bool CanMinimize() const override;
@@ -118,12 +118,12 @@ class UserManagerView : public views::DialogDelegateView {
 
   // views::View:
   bool AcceleratorPressed(const ui::Accelerator& accelerator) override;
-  gfx::Size GetPreferredSize() const override;
 
   // views::DialogDelegateView:

[Peter Kasting, 2017/03/30 00:35:35]

Nit: Combine with above section

   bool CanResize() const override;
   bool CanMaximize() const override;
   bool CanMinimize() const override;
+  gfx::Size GetUnsnappedPreferredSize() const override;
   base::string16 GetWindowTitle() const override;
   int GetDialogButtons() const override;
   void WindowClosing() override;