[gcc 4.x] Fix the broken build reported due to uninitialized |status| variable.

[gcc 4.x] Fix the broken build reported due to uninitialized |status| variable.

CL, https://codereview.chromium.org/1180013006, has introduced a loop breaking condition due to which
gcc 4.8 toolchain reports the following error:

In member function ‘bool blink::JPEGImageReader::decode(const blink::SharedBuffer&, bool)’:
Source/platform/image-decoders/jpeg/JPEGImageDecoder.cpp:554:81: error:
  ‘status’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
  if (!m_info.output_scan_number && (scan > 1) && (status != JPEG_REACHED_EOI))
                                                         ^
We need to initialize the variable explicitly. Using value 0 is safe.

BUG=500567
R=noel@chromium.org, pkasting@chromium.org

Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=197458

[vivekg, 2015-06-19 08:13:40]

vivekg@chromium.org changed reviewers:
+ vivekg@chromium.org

[vivekg, 2015-06-19 08:13:41]

PTAL, thanks!

[Noel Gordon, 2015-06-19 08:34:57]

LGTM

[Noel Gordon, 2015-06-19 08:35:15]

The CQ bit was checked by noel@chromium.org

[commit-bot: I haz the power, 2015-06-19 08:35:27]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1189393002/1

[commit-bot: I haz the power, 2015-06-19 09:17:56]

Committed patchset #1 (id:1) as
https://src.chromium.org/viewvc/blink?view=rev&revision=197458