Chris Craik 62a42c13a6 Adjust offset for non-AA line drawing
bug:8114304

The original .375 was chosen to make GL_LINES align with Skia drawing.
The new value of .065 is chosen to be as small as possible to make
triangle-based lines align with Skia, while keeping lines drawn on
integer coordinates unambiguous as to which column/row they draw on.

Also adds more lines in CanvasCompare test to highlight the difference

Change-Id: If578684f2db320682219c3caa625cf79bc62d88f
2013-02-15 14:53:12 -08:00
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