Align image sizes for SVG with raster image size

Align image sizes for SVG with raster image size

The background geometry calculations has heuristics for tiling image
sizes optimized for integer image sizes (at least in effective zoom ==
1). Rounding SVG image sizes before zoom application makes SVG images
fit better into the existing heuristics.

BUG=601011
Review URL: https://codereview.chromium.org/1912063004

Cr-Commit-Position: refs/heads/master@{#389158}
(cherry picked from commit c53a0d93dd13a025e65668dda879f78142459e04)

Committed: https://chromium.googlesource.com/chromium/src/+/dfb0382772681567f2ef5f55948912a223997c8e

[davve, 2016-04-25 08:22:55]

Description was changed from

==========
Align image sizes for SVG with raster image size

The background geometry calculations has heuristics for tiling image
sizes optimized for integer image sizes (at least in effective zoom ==
1). Rounding SVG image sizes before zoom application makes SVG images
fit better into the existing heuristics.

BUG=601011

Review URL: https://codereview.chromium.org/1912063004

Cr-Commit-Position: refs/heads/master@{#389158}
(cherry picked from commit c53a0d93dd13a025e65668dda879f78142459e04)
==========

to

==========
Align image sizes for SVG with raster image size

The background geometry calculations has heuristics for tiling image
sizes optimized for integer image sizes (at least in effective zoom ==
1). Rounding SVG image sizes before zoom application makes SVG images
fit better into the existing heuristics.

BUG=601011

Review URL: https://codereview.chromium.org/1912063004

Cr-Commit-Position: refs/heads/master@{#389158}
(cherry picked from commit c53a0d93dd13a025e65668dda879f78142459e04)

Committed:
https://chromium.googlesource.com/chromium/src/+/dfb0382772681567f2ef5f559489...
==========

[davve, 2016-04-25 08:22:56]

Committed patchset #1 (id:1) manually as
dfb0382772681567f2ef5f55948912a223997c8e.