Replace use of GC::alpha() in SVGImage::draw() with GC::getNormalizedAlpha()

Replace use of GC::alpha() in SVGImage::draw() with GC::getNormalizedAlpha()

As requested in https://codereview.chromium.org/181633002/

BUG=261177
Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=168049

[f(malita), 2014-02-27 13:23:36]

LGTM.

I was going to ask if we're planning to fix the wonky rounding in
getNormalizedAlpha(), but I guess it naturally goes away when we stop using a
float for m_alpha.

https://codereview.chromium.org/182853002/diff/1/Source/core/svg/graphics/SVG...
File Source/core/svg/graphics/SVGImage.cpp (right):

https://codereview.chromium.org/182853002/diff/1/Source/core/svg/graphics/SVG...
Source/core/svg/graphics/SVGImage.cpp:250: float opacity =
context->getNormalizedAlpha() / 255.f;
nit: just "255" (per coding style).

[fs, 2014-02-27 14:31:56]

https://codereview.chromium.org/182853002/diff/1/Source/core/svg/graphics/SVG...
File Source/core/svg/graphics/SVGImage.cpp (right):

https://codereview.chromium.org/182853002/diff/1/Source/core/svg/graphics/SVG...
Source/core/svg/graphics/SVGImage.cpp:250: float opacity =
context->getNormalizedAlpha() / 255.f;
On 2014/02/27 13:23:37, Florin Malita wrote:
> nit: just "255" (per coding style).

Dropped the '.' (or this will be too binary.)

[fs, 2014-02-27 14:32:00]

The CQ bit was checked by fs@opera.com

[commit-bot: I haz the power, 2014-02-27 14:32:19]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/fs@opera.com/182853002/20001

[commit-bot: I haz the power, 2014-02-27 15:50:55]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2014-02-27 15:50:56]

Retried try job too often on mac_blink_rel for step(s) blink_heap_unittests,
blink_platform_unittests, webkit_lint, webkit_python_tests, webkit_tests,
webkit_unit_tests, wtf_unittests
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=mac_blink_...

[fs, 2014-02-27 15:54:05]

On 2014/02/27 14:31:56, fs wrote:
>
https://codereview.chromium.org/182853002/diff/1/Source/core/svg/graphics/SVG...
> File Source/core/svg/graphics/SVGImage.cpp (right):
> 
>
https://codereview.chromium.org/182853002/diff/1/Source/core/svg/graphics/SVG...
> Source/core/svg/graphics/SVGImage.cpp:250: float opacity =
> context->getNormalizedAlpha() / 255.f;
> On 2014/02/27 13:23:37, Florin Malita wrote:
> > nit: just "255" (per coding style).
> 
> Dropped the '.' (or this will be too binary.)

Had to undo that because the Mac builder wasn't too happy about that.

[fs, 2014-02-27 15:54:49]

The CQ bit was checked by fs@opera.com

[commit-bot: I haz the power, 2014-02-27 15:55:01]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/fs@opera.com/182853002/1

[commit-bot: I haz the power, 2014-02-27 19:53:35]

Change committed as 168049