Make ARM64 detection consistent in chromium.

This is to uniform ARM64 detection code in chromium.
Use only __aarch64__ and don't look for __arm64__ at all.

Patch by Primiano Tucci <primiano@chromium.org>

BUG=chromium:354405, chromium:358092

Review URL: https://breakpad.appspot.com/1304002/


git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1293 4c0a9323-5329-0410-9bdc-e9ce6186880e
GoogleCrashdumpUploader would leak instances of LibcurlWrapper (Coverity)

The GoogleCrashdumpUploader would create, but never destroy it's instance of LibcurlWrapper.

BUG=574
A=cmumford@chromium.org
Original code review: https://breakpad.appspot.com/1314002/

R=cmumford@chromium.org

Review URL: https://breakpad.appspot.com/1344002

git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1294 4c0a9323-5329-0410-9bdc-e9ce6186880e
Terminating FileID path when at maximum length. (Coverity)

If FileID was constructed with a path that was >= PATH_MAX then path_ was not terminated resulting in a possible buffer overrun when reading.

BUG=573
A=cmumford@chromium.org
Original code review: https://breakpad.appspot.com/1324002/

R=cmumford@chromium.org

Review URL: https://breakpad.appspot.com/1334002

git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1295 4c0a9323-5329-0410-9bdc-e9ce6186880e