Make various gfx classes more amenable to use as compile-time constants.

ui/gfx/geometry/vector3d_f.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/geometry/vector3d_f.h"
 
 #include <cmath>
 
 #include "base/strings/stringprintf.h"
 
 namespace {
 const float kRadiansToDegrees = 180.0f / 3.14159265f;
 }
 
 namespace gfx {
 
-Vector3dF::Vector3dF()
-    : x_(0),
-      y_(0),
-      z_(0) {
-}
-
-Vector3dF::Vector3dF(float x, float y, float z)
-    : x_(x),
-      y_(y),
-      z_(z) {
-}
-
-Vector3dF::Vector3dF(const Vector2dF& other)
-    : x_(other.x()),
-      y_(other.y()),
-      z_(0) {
-}
-
 std::string Vector3dF::ToString() const {
   return base::StringPrintf("[%f %f %f]", x_, y_, z_);
 }
 
 bool Vector3dF::IsZero() const {
   return x_ == 0 && y_ == 0 && z_ == 0;
 }
 
 void Vector3dF::Add(const Vector3dF& other) {
   x_ += other.x_;
@@ skipping 59 matching lines @@
 
   // If the dot product of this cross product is normal, it means that the
   // shortest angle between |base| and |other| was counterclockwise with respect
   // to the surface represented by |normal| and this angle must be reversed.
   if (gfx::DotProduct(cross, normal) > 0.0f)
     angle = 360.0f - angle;
   return angle;
 }
 
 }  // namespace gfx