Fix cpplint errors in cc/(animation|input|layers|trees|test)/

cc/input/page_scale_animation.cc

 // Copyright 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 "cc/input/page_scale_animation.h"
 
 #include <math.h>
 
 #include "base/logging.h"
 #include "ui/gfx/point_f.h"
@@ skipping 17 matching lines @@
                             viewport_size.width(),
                             viewport_size.height());
 }
 
 gfx::Vector2dF InterpolateBetween(gfx::Vector2dF start,
                                   gfx::Vector2dF end,
                                   float interp) {
   return start + gfx::ScaleVector2d(end - start, interp);
 }
 
-}
+}  // namespace
 
 namespace cc {
 
 scoped_ptr<PageScaleAnimation> PageScaleAnimation::Create(
     gfx::Vector2dF start_scroll_offset,
     float start_page_scale_factor,
     gfx::SizeF viewport_size,
     gfx::SizeF root_layer_size,
     double start_time) {
   return make_scoped_ptr(new PageScaleAnimation(start_scroll_offset,
@@ skipping 167 matching lines @@
 
   // Linearly interpolate the magnitude in log scale.
   float diff = target_page_scale_factor_ / start_page_scale_factor_;
   float log_diff = log(diff);
   log_diff *= interp;
   diff = exp(log_diff);
   return start_page_scale_factor_ * diff;
 }
 
 }  // namespace cc