Upstream fix for compiling of breakpad with gcc-4.6.  Remove an unnecessary "const" that causes an error with the newer gcc.
Upstream fix for compiling of breakpad with gcc-4.6.  Remove an unnecessary
"const" that causes an error with the newer gcc.

BUG=chromium-os:14973
TEST=Built CrOS's google-breakpad

Patch by Michael Krebs <mkrebs@chromium.org>


git-svn-id: a14e546401035be51a469fbea25ecce70a1a22f2@878 4c0a9323-5329-0410-9bdc-e9ce6186880e

tomgr/google-breakpad,tomgr/google-breakpad,tomgr/google-breakpad,tomgr/google-breakpad,tomgr/google-breakpad