Fix checkdeps failure introduced by r11312
Fix checkdeps failure introduced by r11312

checkdeps complained about #including a Breakpad header:

ERROR in .../native_client/src/untrusted/minidump_generator/minidump_generator.cc
Illegal include: "breakpad/src/google_breakpad/common/minidump_format.h"
    Because of no rule applying

For some unknown reason, checkdeps on the trybots didn't report this
error.

BUG=https://code.google.com/p/nativeclient/issues/detail?id=3424
TEST=run "tools/checkdeps/checkdeps.py" locally

Review URL: https://codereview.chromium.org/14984005

git-svn-id: 721b910a23eff8a86f00c8fd261a7587cddf18f8@11313 fcba33aa-ac0c-11dd-b9e7-8d5594d729c2

sbc100/native_client,sbc100/native_client,sbc100/native_client,sbc100/native_client,sbc100/native_client,sbc100/native_client