Linux Aura: Use Aura theme on all windows when 'Use Classic theme' is used

chrome/browser/ui/views/frame/browser_view.h

Index: chrome/browser/ui/views/frame/browser_view.h
diff --git a/chrome/browser/ui/views/frame/browser_view.h b/chrome/browser/ui/views/frame/browser_view.h
index bcfdd06af0090b5921ff51fcc517f770ab60b7ad..c1672e03af902751117f35cf70730dcdd4e151c2 100644
--- a/chrome/browser/ui/views/frame/browser_view.h
+++ b/chrome/browser/ui/views/frame/browser_view.h
@@ -101,6 +101,11 @@ class BrowserView : public BrowserWindow,
   // The browser view's class name.
   static const char kViewClassName[];
 
+  // Key used to bind an original (non-incognito) profile to the
+  // widget with which it is associated.  Only used on Linux for
+  // determining if windows should use the system theme.
+  static const char kThemeProfileKey[];

[sky, 2017/02/16 22:10:32]

As this is used in places other than browser_view, move to a separate place.
Maybe c/b/ui/views/theme_profile_key. I think it would be good if you move the
getter and the setter there and put the key in the .cc. I'm thinking of:

void SetThemeProfileForWindow(aura::Window* window, Profile* profile);
Profile* GetThemeProfileForWindow(aura::Window*);

I would also use UI_CLASS_PROPERTY rather than
SetNativeWindowProperty/GetNativeWindowProperty. Doing that means you won't need
the reinterpret_cast.

[Tom (Use chromium acct), 2017/02/17 00:35:31]

Done.

+
   BrowserView();
   ~BrowserView() override;