alternative tracing

alternative tracing

output:

[ RUN      ] RenderTextTest.Mac_ElidedText
[50579:1287:0303/191252:1144323898704616:INFO:render_text.cc(974)] elided being set FALSE!
[50579:1287:0303/191252:1144323898761184:INFO:render_text_mac.cc(140)] EnsureLayout based on: This is an example. elided=0
[50579:1287:0303/191252:1144323899423729:INFO:render_text_unittest.cc(2628)]  -- set elide
[50579:1287:0303/191252:1144323899476354:INFO:render_text_mac.cc(120)] UPDATE DISP: 124
[50579:1287:0303/191252:1144323899504847:INFO:render_text.cc(989)] Elided: 1 w=124, 0 , This is an example.,
[50579:1287:0303/191252:1144323899557525:INFO:render_text_unittest.cc(2630)]  -- get string size
[50579:1287:0303/191252:1144323899571130:INFO:render_text_mac.cc(140)] EnsureLayout based on:  elided=1
[50579:1287:0303/191252:1144323899628550:INFO:render_text_unittest.cc(2634)]  -- set display_rect
[50579:1287:0303/191252:1144323899652440:INFO:render_text_mac.cc(120)] UPDATE DISP: 1
[50579:1287:0303/191252:1144323899666400:INFO:render_text.cc(989)] Elided: 1 w=1, 0 , This is an example.,
[50579:1287:0303/191252:1144323899690200:INFO:render_text_unittest.cc(2636)]  -- set
[50579:1287:0303/191252:1144323899700950:INFO:render_text_mac.cc(140)] EnsureLayout based on:  elided=1
../../ui/gfx/render_text_unittest.cc:2640: Failure
Expected: (0u) != (render_text.GetDisplayText().size()), actual: 0 vs 0
[  FAILED  ] RenderTextTest.Mac_ElidedText (5 ms)

BUG=462492