use simpler gradient factories (in prep for removing SkUnitMapper param)

BUG=

Review URL: https://codereview.chromium.org/291843003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@271462 0039d316-1c4b-4281-b951-d872f2087c98

ash/touch/touch_hud_projection.cc

@@ -90,8 +90,7 @@ class TouchPointView : public views::View,
         gradient_colors_,
         gradient_pos_,
         arraysize(gradient_colors_),
-        SkShader::kMirror_TileMode,
-        NULL);
+        SkShader::kMirror_TileMode);
     fill_paint_.setShader(shader);
     shader->unref();
     canvas->DrawCircle(circle_center_, SkIntToScalar(kPointRadius),

content/browser/web_contents/aura/shadow_layer_delegate.cc

@@ -42,7 +42,7 @@ void ShadowLayerDelegate::OnPaintLayer(gfx::Canvas* canvas) {
 
   skia::RefPtr<SkShader> shader = skia::AdoptRef(
       SkGradientShader::CreateLinear(points, kShadowColors, NULL,
-          arraysize(points), SkShader::kRepeat_TileMode, NULL));
+          arraysize(points), SkShader::kRepeat_TileMode));
 
   gfx::Rect paint_rect = gfx::Rect(0, 0, kShadowThick,
                                    layer_->bounds().height());

ui/native_theme/native_theme_base.cc

@@ -605,7 +605,7 @@ SkRect NativeThemeBase::PaintCheckboxRadioCommon(
   SkColor colors[3] = {startEndColors[0], startEndColors[0], startEndColors[1]};
   skia::RefPtr<SkShader> shader = skia::AdoptRef(
       SkGradientShader::CreateLinear(
-          gradient_bounds, colors, NULL, 3, SkShader::kClamp_TileMode, NULL));
+          gradient_bounds, colors, NULL, 3, SkShader::kClamp_TileMode));
   SkPaint paint;
   paint.setAntiAlias(true);
   paint.setShader(shader.get());
@@ -692,7 +692,7 @@ void NativeThemeBase::PaintButton(SkCanvas* canvas,
 
   skia::RefPtr<SkShader> shader = skia::AdoptRef(
       SkGradientShader::CreateLinear(
-          gradient_bounds, colors, NULL, 2, SkShader::kClamp_TileMode, NULL));
+          gradient_bounds, colors, NULL, 2, SkShader::kClamp_TileMode));
   paint.setStyle(SkPaint::kFill_Style);
   paint.setAntiAlias(true);
   paint.setShader(shader.get());

ui/views/controls/menu/menu_image_util.cc

@@ -54,7 +54,7 @@ class RadioButtonImageSource : public gfx::CanvasImageSource {
     skia::RefPtr<SkShader> shader = skia::AdoptRef(
         SkGradientShader::CreateLinear(
             gradient_points, gradient_colors, NULL, arraysize(gradient_points),
-            SkShader::kClamp_TileMode, NULL));
+            SkShader::kClamp_TileMode));
     SkPaint paint;
     paint.setStyle(SkPaint::kFill_Style);
     paint.setAntiAlias(true);
@@ -76,8 +76,7 @@ class RadioButtonImageSource : public gfx::CanvasImageSource {
       shader = skia::AdoptRef(
           SkGradientShader::CreateLinear(
               selected_gradient_points, selected_gradient_colors, NULL,
-              arraysize(selected_gradient_points),
-              SkShader::kClamp_TileMode, NULL));
+              arraysize(selected_gradient_points), SkShader::kClamp_TileMode));
       paint.setShader(shader.get());
       paint.setStyle(SkPaint::kFill_Style);
       canvas->sk_canvas()->drawCircle(radius, radius,

ui/views/controls/progress_bar.cc

@@ -81,7 +81,7 @@ void FillRoundRect(gfx::Canvas* canvas,
     p[1].iset(x, y + h);
   }
   skia::RefPtr<SkShader> s = skia::AdoptRef(SkGradientShader::CreateLinear(
-      p, colors, points, count, SkShader::kClamp_TileMode, NULL));
+      p, colors, points, count, SkShader::kClamp_TileMode));
   paint.setShader(s.get());
 
   canvas->DrawPath(path, paint);
@@ -300,7 +300,7 @@ void ProgressBar::OnPaint(gfx::Canvas* canvas) {
         skia::RefPtr<SkShader> s =
             skia::AdoptRef(SkGradientShader::CreateLinear(
                 p, highlight_colors, highlight_points,
-                arraysize(highlight_colors), SkShader::kClamp_TileMode, NULL));
+                arraysize(highlight_colors), SkShader::kClamp_TileMode));
         paint.setShader(s.get());
         paint.setXfermodeMode(SkXfermode::kSrcOver_Mode);
         canvas->DrawRect(gfx::Rect(highlight_left, 0,

ui/views/painter.cc

@@ -151,7 +151,7 @@ void GradientPainter::Paint(gfx::Canvas* canvas, const gfx::Size& size) {
     p[1].iset(0, size.height());
 
   skia::RefPtr<SkShader> s = skia::AdoptRef(SkGradientShader::CreateLinear(
-      p, colors_.get(), pos_.get(), count_, SkShader::kClamp_TileMode, NULL));
+      p, colors_.get(), pos_.get(), count_, SkShader::kClamp_TileMode));
   paint.setStyle(SkPaint::kFill_Style);
   paint.setShader(s.get());