android_webview: don't suppress debuggerd crash handling.

android_webview: don't suppress debuggerd crash handling.

WebView was incorrectly suppressing debuggerd crash handling after
breakpad microdumps were triggered on all user builds of android, as the
process type was not empty as expected for the Chrome browser process.
This went unnoticed as the normal behaviour was still in place for
userdebug/eng builds. Fix by also treating "webview" process type as a
browser process in the crash component.

BUG=481420
Review URL: https://codereview.chromium.org/1105293003

Cr-Commit-Position: refs/heads/master@{#327277}
(cherry picked from commit 5db4beded0f78f77207790cd9a66bf7fcbfc4fc3)

Committed: https://chromium.googlesource.com/chromium/src/+/bd67cb98f8ce063c4f71f252093038cbe3ae06d1

[Torne, 2015-04-28 17:20:13]

Committed patchset #1 (id:1) manually as
bd67cb98f8ce063c4f71f252093038cbe3ae06d1.