ui: Clean up naming of paint-related identifiers

ui/gfx/nine_image_painter.cc

Index: ui/gfx/nine_image_painter.cc
diff --git a/ui/gfx/nine_image_painter.cc b/ui/gfx/nine_image_painter.cc
index 60c8d021835ac8d18cdf8fc716480ac0fa09df9d..fa1afe44b03f27611b81cf619b83e5389ae22173 100644
--- a/ui/gfx/nine_image_painter.cc
+++ b/ui/gfx/nine_image_painter.cc
@@ -43,10 +43,10 @@ void Fill(Canvas* c,
           int y,
           int w,
           int h,
-          const cc::PaintFlags& paint) {
+          const cc::PaintFlags& flags) {
   if (rep.is_null())
     return;
-  c->DrawImageIntInPixel(rep, x, y, w, h, false, paint);
+  c->DrawImageIntInPixel(rep, x, y, w, h, false, flags);
 }
 
 }  // namespace
@@ -157,21 +157,21 @@ void NineImagePainter::Paint(Canvas* canvas,
   int i4h =
       std::max(height_in_pixels - i4y - std::min(std::min(i6h, i7h), i8h), 0);
 
-  cc::PaintFlags paint;
-  paint.setAlpha(alpha);
+  cc::PaintFlags flags;
+  flags.setAlpha(alpha);
 
-  Fill(canvas, image_reps[4], i4x, i4y, i4w, i4h, paint);
-  Fill(canvas, image_reps[0], 0, 0, i0w, i0h, paint);
-  Fill(canvas, image_reps[1], i0w, 0, width_in_pixels - i0w - i2w, i1h, paint);
-  Fill(canvas, image_reps[2], width_in_pixels - i2w, 0, i2w, i2h, paint);
-  Fill(canvas, image_reps[3], 0, i0h, i3w, height_in_pixels - i0h - i6h, paint);
+  Fill(canvas, image_reps[4], i4x, i4y, i4w, i4h, flags);
+  Fill(canvas, image_reps[0], 0, 0, i0w, i0h, flags);
+  Fill(canvas, image_reps[1], i0w, 0, width_in_pixels - i0w - i2w, i1h, flags);
+  Fill(canvas, image_reps[2], width_in_pixels - i2w, 0, i2w, i2h, flags);
+  Fill(canvas, image_reps[3], 0, i0h, i3w, height_in_pixels - i0h - i6h, flags);
   Fill(canvas, image_reps[5], width_in_pixels - i5w, i2h, i5w,
-       height_in_pixels - i2h - i8h, paint);
-  Fill(canvas, image_reps[6], 0, height_in_pixels - i6h, i6w, i6h, paint);
+       height_in_pixels - i2h - i8h, flags);
+  Fill(canvas, image_reps[6], 0, height_in_pixels - i6h, i6w, i6h, flags);
   Fill(canvas, image_reps[7], i6w, height_in_pixels - i7h,
-       width_in_pixels - i6w - i8w, i7h, paint);
+       width_in_pixels - i6w - i8w, i7h, flags);
   Fill(canvas, image_reps[8], width_in_pixels - i8w, height_in_pixels - i8h,
-       i8w, i8h, paint);
+       i8w, i8h, flags);
 }
 
 // static