cc: Use SkMScalar instead of doubles everywhere in cc

ui/gfx/transform_util.h

 // 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.
 
 #ifndef UI_GFX_TRANSFORM_UTIL_H_
 #define UI_GFX_TRANSFORM_UTIL_H_
 
 #include "ui/gfx/gfx_export.h"
 #include "ui/gfx/transform.h"
 
 namespace gfx {
 
 class Point;
 
 // Returns a scale transform at |anchor| point.
 UI_EXPORT Transform GetScaleTransform(const Point& anchor, float scale);
 
 // Contains the components of a factored transform. These components may be
 // blended and recomposed.
 struct UI_EXPORT DecomposedTransform {
   // The default constructor initializes the components in such a way that
   // if used with Compose below, will produce the identity transform.
   DecomposedTransform();
 
-  double translate[3];
-  double scale[3];
-  double skew[3];
-  double perspective[4];
-  double quaternion[4];
+  SkMScalar translate[3];
+  SkMScalar scale[3];
+  SkMScalar skew[3];
+  SkMScalar perspective[4];
+  SkMScalar quaternion[4];
 
   // Copy and assign are allowed.
 };
 
 // Interpolates the decomposed components |to| with |from| using the
 // routines described in http://www.w3.org/TR/css3-3d-transform/.
 // |progress| is in the range [0, 1] (0 leaves |out| unchanged, and 1
 // assigns |from| to |out|).
 UI_EXPORT bool BlendDecomposedTransforms(DecomposedTransform* out,
                                          const DecomposedTransform& to,
                                          const DecomposedTransform& from,
-                                         double progress);
+                                         SkMScalar progress);
 
 // Decomposes this transform into its translation, scale, skew, perspective,
 // and rotation components following the routines detailed in this spec:
 // http://www.w3.org/TR/css3-3d-transforms/.
 UI_EXPORT bool DecomposeTransform(DecomposedTransform* out,
                                   const Transform& transform);
 
 // Composes a transform from the given translation, scale, skew, prespective,
 // and rotation components following the routines detailed in this spec:
 // http://www.w3.org/TR/css3-3d-transforms/.
 UI_EXPORT Transform ComposeTransform(const DecomposedTransform& decomp);
 
 }  // namespace gfx
 
 #endif  // UI_GFX_TRANSFORM_UTIL_H_