Revert 214144 "Add PRESUBMIT check to cc to ensure that C++ std:..."

For some reason patch is causing a win7_aura failure, reverting
to investigate.

> Add PRESUBMIT check to cc to ensure that C++ std::abs is used
> 
> Before this patch, it is possible to use abs() without the std::
> namespace qualifier, which may link to the C standard library
> implementation of abs(). Thus, someone using abs(float) may get
> wrong results because C standard version will convert the float
> to an int. This patch updates the occurrences of of abs() and
> fabs() in cc/ (though technically none were incorrect, thankfully)
> and adds a PRESUBMIT to enforce that all uses of abs from now on
> have an explicit std:: to resolve them correctly.
> 
> BUG=261900
> R=enne@chromium.org
> 
> Review URL: https://codereview.chromium.org/19835003

TBR=shawnsingh@google.com

Review URL: https://codereview.chromium.org/20992002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@214149 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 1 insertions, 1 deletions

diff --git a/cc/debug/overdraw_metrics.cc b/cc/debug/overdraw_metrics.cc
index 5b19370..0b3e838 100644
--- a/cc/debug/overdraw_metrics.cc
+++ b/cc/debug/overdraw_metrics.cc
@@ -39,7 +39,7 @@ static inline float PolygonArea(gfx::PointF points[8], int num_points) {
   float area = 0;
   for (int i = 0; i < num_points; ++i)
     area += WedgeProduct(points[i], points[(i+1)%num_points]);
-  return std::abs(0.5f * area);
+  return fabs(0.5f * area);
 }
 
 // Takes a given quad, maps it by the given transformation, and gives the area