Set Mac crash dumps to go in chrome::DIR_CRASH_DUMPS
Set Mac crash dumps to go in chrome::DIR_CRASH_DUMPS

This makes it consistent across other platforms, such that chrome::DIR_CRASH_DUMPS on Mac actually points to the right dir.

Crash dumps used to go in ~/Library/Breakpad/Chrome_Mac
They'll now go in: ~/Library/Application Support/Google/Chrome/Crash Reports

BUG=52365
TEST=Mac breakpad continues to work

Review URL: http://codereview.chromium.org/3152021

git-svn-id: http://src.chromium.org/svn/trunk/src@56415 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: fb2e263beb6abc9db8b415e89162fefe4c0fd36a
meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser