ui: Clean up naming of paint-related identifiers

ui/gfx/image/image_skia_operations.cc

 // Copyright (c) 2012 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/image/image_skia_operations.h"
 
 #include <stddef.h>
 
 #include "base/command_line.h"
 #include "base/logging.h"
@@ skipping 391 matching lines @@
  public:
   HorizontalShadowSource(const std::vector<ShadowValue>& shadows,
                          bool fades_down)
       : CanvasImageSource(Size(1, GetHeightForShadows(shadows)), false),
         shadows_(shadows),
         fades_down_(fades_down) {}
   ~HorizontalShadowSource() override {}
 
   // CanvasImageSource overrides:
   void Draw(Canvas* canvas) override {
-    cc::PaintFlags paint;
-    paint.setLooper(CreateShadowDrawLooperCorrectBlur(shadows_));
-    canvas->DrawRect(RectF(0, fades_down_ ? -1 : size().height(), 1, 1), paint);
+    cc::PaintFlags flags;
+    flags.setLooper(CreateShadowDrawLooperCorrectBlur(shadows_));
+    canvas->DrawRect(RectF(0, fades_down_ ? -1 : size().height(), 1, 1), flags);
   }
 
  private:
   static int GetHeightForShadows(const std::vector<ShadowValue>& shadows) {
     int height = 0;
     for (const auto& shadow : shadows) {
       height = std::max(height, shadow.y() + ToCeiledInt(shadow.blur() / 2));
     }
     return height;
   }
@@ skipping 193 matching lines @@
   if (icon.isNull())
     return ImageSkia();
 
   if (badge.isNull())
     return icon;
 
   return ImageSkia(new IconWithBadgeSource(icon, badge), icon.size());
 }
 
 }  // namespace gfx