Convert ui/gfx away from base::Bind/base::Callback

base::Bind/base::Callback are deprecated in favor of either
base::BindOnce/base::OnceCallback or base::BindRepeating/
base::RepeatingCallback (depending on whether the callback
is invoked once or multiple time).

Convert all uses of base::Bind/base::Callback in ui/gfx
to the recommended methods/types.

Bug: 1007851
Change-Id: Iac0a7b8e9bb05a9f9c3f498bc43c078e0d7ee64e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1831862
Auto-Submit: Sylvain Defresne <sdefresne@chromium.org>
Commit-Queue: Alexei Svitkine <asvitkine@chromium.org>
Reviewed-by: Alexei Svitkine <asvitkine@chromium.org>
Cr-Commit-Position: refs/heads/master@{#701634}

ui/gfx/font_render_params_win.cc

@@ -75,8 +75,9 @@ class CachedFontRenderParams {
         params_->subpixel_rendering = GetSubpixelRenderingGeometry();
       }
     }
-    singleton_hwnd_observer_ = std::make_unique<SingletonHwndObserver>(
-        base::Bind(&CachedFontRenderParams::OnWndProc, base::Unretained(this)));
+    singleton_hwnd_observer_ =
+        std::make_unique<SingletonHwndObserver>(base::BindRepeating(
+            &CachedFontRenderParams::OnWndProc, base::Unretained(this)));
     return *params_;
   }
 

ui/gfx/sys_color_change_listener.cc

@@ -74,8 +74,8 @@ SysColorChangeObserver* SysColorChangeObserver::GetInstance() {
 
 SysColorChangeObserver::SysColorChangeObserver()
     : singleton_hwnd_observer_(new SingletonHwndObserver(
-          base::Bind(&SysColorChangeObserver::OnWndProc,
-                     base::Unretained(this)))) {}
+          base::BindRepeating(&SysColorChangeObserver::OnWndProc,
+                              base::Unretained(this)))) {}
 
 SysColorChangeObserver::~SysColorChangeObserver() {}
 

ui/gfx/win/singleton_hwnd_observer.h

@@ -21,7 +21,7 @@ class SingletonHwnd;
 // use a SingletonHwndHotKeyObserver instead for each hot key.
 class GFX_EXPORT SingletonHwndObserver {
  public:
-  typedef base::Callback<void(HWND, UINT, WPARAM, LPARAM)> WndProc;
+  using WndProc = base::RepeatingCallback<void(HWND, UINT, WPARAM, LPARAM)>;
 
   explicit SingletonHwndObserver(const WndProc& wnd_proc);
   ~SingletonHwndObserver();

ui/gfx/win/window_impl.cc

@@ -170,8 +170,8 @@ WindowImpl::~WindowImpl() {
 // static
 void WindowImpl::UnregisterClassesAtExit() {
   base::AtExitManager::RegisterTask(
-      base::Bind(&ClassRegistrar::UnregisterClasses,
-                 base::Unretained(ClassRegistrar::GetInstance())));
+      base::BindOnce(&ClassRegistrar::UnregisterClasses,
+                     base::Unretained(ClassRegistrar::GetInstance())));
 }
 
 void WindowImpl::Init(HWND parent, const Rect& bounds) {