ui: Fix cc/paint skia type mismatches

ui/gfx/shadow_util.cc

 // Copyright 2017 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/gfx/shadow_util.h"
 
 #include <map>
 #include <vector>
 
 #include "base/lazy_instance.h"
@@ skipping 18 matching lines @@
                       float corner_radius)
       : CanvasImageSource(CalculateSize(shadows, corner_radius), false),
         shadows_(shadows),
         corner_radius_(corner_radius) {
     DCHECK(!shadows.empty());
   }
   ~ShadowNineboxSource() override {}
 
   // CanvasImageSource overrides:
   void Draw(Canvas* canvas) override {
-    SkPaint paint;
-    paint.setLooper(CreateShadowDrawLooperCorrectBlur(shadows_));
+    cc::PaintFlags flags;
+    flags.setLooper(CreateShadowDrawLooperCorrectBlur(shadows_));
     Insets insets = -ShadowValue::GetMargin(shadows_);
     gfx::Rect bounds(size());
     bounds.Inset(insets);
     SkRRect r_rect = SkRRect::MakeRectXY(gfx::RectToSkRect(bounds),
                                          corner_radius_, corner_radius_);
 
     // Clip out the center so it's not painted with the shadow.
     canvas->sk_canvas()->clipRRect(r_rect, SkClipOp::kDifference, true);
     // Clipping alone is not enough --- due to anti aliasing there will still be
     // some of the fill color in the rounded corners. We must make the fill
     // color transparent.
-    paint.setColor(SK_ColorTRANSPARENT);
-    canvas->sk_canvas()->drawRRect(r_rect, paint);
+    flags.setColor(SK_ColorTRANSPARENT);
+    canvas->sk_canvas()->drawRRect(r_rect, flags);
   }
 
  private:
   static Size CalculateSize(const std::vector<ShadowValue>& shadows,
                             float corner_radius) {
     // The "content" area (the middle tile in the 3x3 grid) is a single pixel.
     gfx::Rect bounds(0, 0, 1, 1);
     // We need enough space to render the full range of blur.
     bounds.Inset(-ShadowValue::GetBlurRegion(shadows));
     // We also need space for the full roundrect corner rounding.
@@ skipping 41 matching lines @@
                               SkColorSetA(SK_ColorBLACK, 0x1f));
   // To see what this looks like for elevation 24, try this CSS:
   //   box-shadow: 0 24px 48px rgba(0, 0, 0, .24),
   //               0 0 24px rgba(0, 0, 0, .12);
   auto* source = new ShadowNineboxSource(shadow->values, corner_radius);
   shadow->ninebox_image = ImageSkia(source, source->size());
   return *shadow;
 }
 
 }  // namespace gfx