tree 117ff5fae2f38d9a97f2767a65eac8ed6a492069
parent bd716fcf89f38bb82eb97ae73e9af60c2232328e
author Oliver Chang <ochang@chromium.org> 1448041988 -0800
committer Oliver Chang <ochang@chromium.org> 1448041988 -0800

Change |CCodec_ScanlineDecoder::m_Pitch| to FX_DWORD

This matches the type of the corresponding |CFX_DIBSource::m_Pitch|,
where integer overflow is checked for FX_DWORD. This change is
propagated to many other places.

Also, check for integer overflow in |CCodec_RLScanlineDecoder::Create|
during the calculation of |m_Pitch| since it aligns to 4 bytes while
overflow was was previously checked without this alignment.

R=tsepez@chromium.org, thestig@chromium.org
BUG=555784

Review URL: https://codereview.chromium.org/1460033002 .