Remove RenderWidgetHostViewAura::SchedulePaintIfNotInClip

This is unreferenced code.

BUG=
TBR=sadrul@chromium.org

Change-Id: I50ab2081195a0dc8fd447c08d29e87b5b55086d7
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1841775Reviewed-by: Robert Liao <robliao@chromium.org>
Commit-Queue: Robert Liao <robliao@chromium.org>
Cr-Commit-Position: refs/heads/master@{#702986}

content/browser/renderer_host/render_widget_host_view_aura.cc

@@ -2304,18 +2304,6 @@ void RenderWidgetHostViewAura::UpdateLegacyWin() {
 }
 #endif
 
-void RenderWidgetHostViewAura::SchedulePaintIfNotInClip(
-    const gfx::Rect& rect,
-    const gfx::Rect& clip) {
-  if (!clip.IsEmpty()) {
-    gfx::Rect to_paint = gfx::SubtractRects(rect, clip);
-    if (!to_paint.IsEmpty())
-      window_->SchedulePaintInRect(to_paint);
-  } else {
-    window_->SchedulePaintInRect(rect);
-  }
-}
-
 void RenderWidgetHostViewAura::AddedToRootWindow() {
   window_->GetHost()->AddObserver(this);
   UpdateScreenInfo(window_);

content/browser/renderer_host/render_widget_host_view_aura.h

@@ -516,10 +516,6 @@ class CONTENT_EXPORT RenderWidgetHostViewAura
   // the mouse cursor is visible anywhere on the screen.
   void NotifyRendererOfCursorVisibilityState(bool is_visible);
 
-  // If |clip| is non-empty and and doesn't contain |rect| or |clip| is empty
-  // SchedulePaint() is invoked for |rect|.
-  void SchedulePaintIfNotInClip(const gfx::Rect& rect, const gfx::Rect& clip);
-
   // Called after |window_| is parented to a WindowEventDispatcher.
   void AddedToRootWindow();