Delete reduntdant 19 header files in ui/gfx of chromium (blink side)

Delete reduntdant 19 header files in ui/gfx of chromium (blink side)

This blink side patch has to be preceded to delete below reduntdant
19 header files in ui/gfx of chromium.
(Please refer to https://codereview.chromium.org/392013005/)
These header files need to be deleted 
since they were already moved from ui/gfx to ui/gfx/geometry.

[Rendunt 19 header files to be deleted on chromium-side]
ui/gfx/box_f.h
ui/gfx/point.h
ui/gfx/point3_f.h
ui/gfx/quad_f.h
ui/gfx/insets.h
ui/gfx/point_f.h
ui/gfx/vector2d.h
ui/gfx/matrix3_f.h
ui/gfx/size.h
ui/gfx/size_f.h
ui/gfx/rect.h
ui/gfx/rect_f.h
ui/gfx/rect_conversions.h
ui/gfx/size_conversions.h
ui/gfx/point_conversions.h
ui/gfx/vector2d_conversions.h
ui/gfx/safe_interget_conversions.h
ui/gfx/vector3d_f.h
ui/gfx/vector2d_f.h

BUG=395370
Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=178520

[hyunki, 2014-07-19 14:26:07]

PTAL. Thank you. :)

[abarth-chromium, 2014-07-19 17:25:22]

lgtm

[commit-bot: I haz the power, 2014-07-19 17:25:41]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/hyunki.baik@samsung.com/400403002/1

[commit-bot: I haz the power, 2014-07-19 18:16:53]

Change committed as 178520

[hyunki, 2014-07-20 05:21:02]

Thanks for the review. :)
I'll make chromium patches to get reviewed then.