Revert "Reland "Enable Crashpad for Android""

This reverts commit b8d9022384f5cb730281492d6279ed40f88263ae.

Reason for revert: crbug.com/914246, crbug.com/912739

Original change's description:
> Reland "Enable Crashpad for Android"
>
> This is a reland of 66b2e0f1b0a8d4fd5ced145eeca9ad88e92ddc69
>
> Original change's description:
> > Enable Crashpad for Android
> >
> > Overview:
> > This CL disables Breakpad for Chrome, Content Shell, WebView, and
> > Chromecast on Android and replaces it with Crashpad. When a crash
> > signal is received, the browser forks+execs a Crashpad handler process
> > either for itself or on behalf of a crashing child to create a crash
> > dump.
> >
> > components/crash/
> >   - Remove CrashDumpManager. Minidump creation is handled entirely by
> >     Crashpad.
> >   - Remove OnChildStart from ChildExitObserver as it is no longer
> >     necessary.
> >   - ChildExitObserver observers CrashHandlerHost to be notified when
> >     child processes receive crash signals.
> >   - De-duplicate calls to ChildExitObserver::Client::OnChildExit when
> >     NOTIFICATION_RENDER_PROCESS_{CLOSED, TERMINATED} are both sent.
> >
> > components/minidump_uploader/
> >   - Uploaders expect crash reports to already be MIME encoded since
> >     Breakpad was doing that in a signal handler call-back.
> >     CrashFileManager now automatically calls into native code to do
> >     the encoding and write to a directory of crash reports whenever it
> >     checks for reports without logcats.
> >
> > chrome/app/*.{cc,h}
> > chrome/browser/*.cc
> > content/shell/app/*.{cc,h}
> > content/shell/browser/*.cc
> >   - Initialize Crashpad instead of Breakpad, with minor cleanup and
> >     adjustment for changes to CrashDumpObserver.
> >
> > chrome/browser/metrics/oom/out_of_memory_reporter_unittest.cc
> >   - Simulate crashes/exits with NOTIFICATION_RENDER_PROCESS_{CREATED,
> >     CLOSED} and signals sent to ChildExitObserver instead of a crash
> >     dump.
> >
> > android_webview/
> >   - AwBrowserTerminator now observes child process crashes via
> >     ChildExitObserver rather than its own pipe.
> >   - Crashpad always produces minidumps, and not microdumps.
> >   - Disabling Crashpad is not yet supported.
> >
> > chromecast/
> >   - There are now two directories that crash report uploaders should
> >     be aware of: "Crashpad" contains a database of raw minidumps
> >     produced by Crashpad, and "Crash Reports" contains MIME encoded
> >     minidumps. MIME encoding is performed by a CrashReportMimeWriter
> >     in CastCrashUploader.java:checkForCrashDumps().
> >
> > Bug: crashpad:30
> > Cq-Include-Trybots: master.tryserver.chromium.android:android_compile_x64_dbg;master.tryserver.chromium.android:android_compile_x86_dbg
> > Change-Id: I0efa451585f60287853c47f860f09ced581c8958
> > Reviewed-on: https://chromium-review.googlesource.com/c/989401
> > Commit-Queue: Joshua Peraza <jperaza@chromium.org>
> > Reviewed-by: Tobias Sargeant <tobiasjs@chromium.org>
> > Reviewed-by: John Abd-El-Malek <jam@chromium.org>
> > Reviewed-by: Peter Wen <wnwen@chromium.org>
> > Reviewed-by: Luke Halliwell <halliwell@chromium.org>
> > Reviewed-by: Simeon Anfinrud <sanfin@chromium.org>
> > Reviewed-by: Yaron Friedman <yfriedman@chromium.org>
> > Reviewed-by: Mark Mentovai <mark@chromium.org>
> > Reviewed-by: Peter Beverloo <peter@chromium.org>
> > Reviewed-by: Ilya Sherman <isherman@chromium.org>
> > Cr-Commit-Position: refs/heads/master@{#612987}
>
> TBR=tobiasjs@chromium.org,jam@chromium.org,wnwen@chromium.org,halliwell@chromium.org,sanfin@chromium.org,yfriedman@chromium.org,peter@chromium.org,isherman@chromium.org
>
> Bug: crashpad:30
> Change-Id: Ia1654bc4fbe59005513f30364753309ae232052d
> Cq-Include-Trybots: master.tryserver.chromium.android:android_compile_x64_dbg;master.tryserver.chromium.android:android_compile_x86_dbg
> Reviewed-on: https://chromium-review.googlesource.com/c/1357941
> Commit-Queue: Joshua Peraza <jperaza@chromium.org>
> Reviewed-by: Mark Mentovai <mark@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#613333}

TBR=yfriedman@chromium.org,peter@chromium.org,isherman@chromium.org,jam@chromium.org,wnwen@chromium.org,torne@chromium.org,halliwell@chromium.org,tobiasjs@chromium.org,rsesek@chromium.org,sanfin@chromium.org,jperaza@chromium.org,mark@chromium.org

Change-Id: I7c539a6f48bb22c55031c1a344b16e07ba9bb660
Bug: crashpad:30
Cq-Include-Trybots: master.tryserver.chromium.android:android_compile_x64_dbg;master.tryserver.chromium.android:android_compile_x86_dbg
Reviewed-on: https://chromium-review.googlesource.com/c/1361286
Commit-Queue: Joshua Peraza <jperaza@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
Cr-Commit-Position: refs/heads/master@{#616077}
68 files changed