pdfviewer: remove sqrt from the formula computing the scale (DPI is dots per inch, not dots per square inch)

Review URL: https://codereview.chromium.org/70793003

git-svn-id: http://skia.googlecode.com/svn/trunk@12258 2bbb7eff-a529-9590-31e7-b0007b416f81
1 file changed