remove SkFloatToScalar macro

src/effects/SkGpuBlurUtils.cpp

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkGpuBlurUtils.h"
 
 #include "SkRect.h"
 
 #if SK_SUPPORT_GPU
 #include "effects/GrConvolutionEffect.h"
 #include "effects/GrTextureDomainEffect.h"
 #include "GrContext.h"
 #endif
 
 namespace SkGpuBlurUtils {
 
 #if SK_SUPPORT_GPU
 
 #define MAX_BLUR_SIGMA 4.0f
 
 static void scale_rect(SkRect* rect, float xScale, float yScale) {
-    rect->fLeft   = SkScalarMul(rect->fLeft,   SkFloatToScalar(xScale));
-    rect->fTop    = SkScalarMul(rect->fTop,    SkFloatToScalar(yScale));
-    rect->fRight  = SkScalarMul(rect->fRight,  SkFloatToScalar(xScale));
-    rect->fBottom = SkScalarMul(rect->fBottom, SkFloatToScalar(yScale));
+    rect->fLeft   = SkScalarMul(rect->fLeft,   xScale);
+    rect->fTop    = SkScalarMul(rect->fTop,    yScale);
+    rect->fRight  = SkScalarMul(rect->fRight,  xScale);
+    rect->fBottom = SkScalarMul(rect->fBottom, yScale);
 }
 
 static float adjust_sigma(float sigma, int *scaleFactor, int *radius) {
     *scaleFactor = 1;
     while (sigma > MAX_BLUR_SIGMA) {
         *scaleFactor *= 2;
         sigma *= 0.5f;
     }
     *radius = static_cast<int>(ceilf(sigma * 3.0f));
     SkASSERT(*radius <= GrConvolutionEffect::kMaxKernelRadius);
@@ skipping 217 matching lines @@
     } else if (srcTexture == temp2.texture()) {
         return temp2.detach();
     } else {
         srcTexture->ref();
         return srcTexture;
     }
 }
 #endif
 
 }