Add Skia on Chrome for Mac gyp rules

Add Skia on Chrome for Mac gyp rules

In addition to these rules, to build
the USE_SKIA_ON_MAC_CHROME variation,
define: gyp_defines='use_skia=1'

As is, this does not change any existing
platform, and has no new tests.

BUG=79463
TEST=none

Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=89877

[darin (slow to review), 2011-06-21 17:37:44]

LGTM w/ nits fixed

http://codereview.chromium.org/7219009/diff/1/build/common.gypi
File build/common.gypi (right):

http://codereview.chromium.org/7219009/diff/1/build/common.gypi#newcode149
build/common.gypi:149: # Use Skia as WebKit renderer on Mac
nit: indentation is off

http://codereview.chromium.org/7219009/diff/1/skia/skia.gyp
File skia/skia.gyp (right):

http://codereview.chromium.org/7219009/diff/1/skia/skia.gyp#newcode799
skia/skia.gyp:799: [ 'OS == "mac" and use_skia==0', {
nit: you could also just nest another 'conditions' sectio inside the existing
'OS == "mac"' section.  that way you don't need to repeat the OS == "mac" part.

[commit-bot: I haz the power, 2011-06-21 19:20:25]

Change committed as 89877