M55: pdfium: Fix inconsistent number of color components of ICC profile

M55: pdfium: Fix inconsistent number of color components of ICC profile

fx_codec_icc.cpp specify default number of color components as 3 for
unknown profiles. However, lcms may know such profile with different
number of components. The inconsistency may lead to array access
violation.

This CL uses cmsChannelsOf() from lcms to ensure consistency. And
rejects unexpected number according to PDF spec.

BUG=chromium:667694
Original-Review-Url: https://codereview.chromium.org/2522933002
(cherry picked from commit 89a2d92549d25df6786d53de5671eb141e1fd3e2)

TBR=thestig@chromium.org,tsepez@chromium.org

Committed: https://pdfium.googlesource.com/pdfium/+/f4145df3f36aeb10d78d6b4ba9f06ca2270e5e37

[Oliver Chang, 2016-11-28 23:44:00]

TBR, clean merge.

[Oliver Chang, 2016-11-28 23:46:18]

Description was changed from

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M55: pdfium: Fix inconsistent number of color components of ICC profile

fx_codec_icc.cpp specify default number of color components as 3 for
unknown profiles. However, lcms may know such profile with different
number of components. The inconsistency may lead to array access
violation.

This CL uses cmsChannelsOf() from lcms to ensure consistency. And
rejects unexpected number according to PDF spec.

BUG=chromium:667694

Original-Review-Url: https://codereview.chromium.org/2522933002
(cherry picked from commit 89a2d92549d25df6786d53de5671eb141e1fd3e2)

TBR=thestig@chromium.org,tsepez@chromium.org
==========

to

==========
M55: pdfium: Fix inconsistent number of color components of ICC profile

fx_codec_icc.cpp specify default number of color components as 3 for
unknown profiles. However, lcms may know such profile with different
number of components. The inconsistency may lead to array access
violation.

This CL uses cmsChannelsOf() from lcms to ensure consistency. And
rejects unexpected number according to PDF spec.

BUG=chromium:667694

Original-Review-Url: https://codereview.chromium.org/2522933002
(cherry picked from commit 89a2d92549d25df6786d53de5671eb141e1fd3e2)

TBR=thestig@chromium.org,tsepez@chromium.org

Committed:
https://pdfium.googlesource.com/pdfium/+/f4145df3f36aeb10d78d6b4ba9f06ca2270e...
==========

[Oliver Chang, 2016-11-28 23:46:19]

Committed patchset #1 (id:1) manually as
f4145df3f36aeb10d78d6b4ba9f06ca2270e5e37 (presubmit successful).