Cherry pick PR #7191: android: Capture top 4 Java stack frames on exc…

…eption (#7193)

Refer to the original PR: #7191

The previous FindFirstJavaFileAndLine only extracted the first
file and line number from a Java exception, which is often
insufficient for debugging.

This updates the regex to also capture the method name and
iterates to find the top 4 frames of the stack trace.
The resulting string (e.g., method1@file1:10&method2@file2:20)
will provide much richer context for crash analysis.

Bug: 430385989
Change-Id: Ifd005980c49de10e5a257d10e8169026c88449c6

Co-authored-by: Colin Liang <colinliang@google.com>

Cherry pick PR #7110: starboard: Check pthread_join completes success…

…fully (#7120)

Refer to the original PR: #7110

The code relies on a fundamental invariant: after pthread_join()
returns, the joined thread is guaranteed to have terminated. This means
no more callbacks will be made from that thread.

A failure in `pthread_join()` breaches this invariant and leads to an
unexpected state where the supposedly-completed thread is still running
and calling callbacks. This can lead to use-after-free errors or other
race conditions. This change adds a check to enforce this invariant,
preventing the application from continuing in a corrupt state.

#vibe-coded

Bug: 443334872

---------

Co-authored-by: Kyujung Youn <kjyoun@google.com>

Cherry pick PR #7028: Add OnMemoryPressure logging (#7046)

Refer to the original PR: #7028

To help us discover memory pressure handling in logcat.

Bug: 440200929

Co-authored-by: johnx <johnx@google.com>

Cherry pick PR #5406: Register main thread and in-process renderer th…

…read in HangWatcher (#5406) (#6834)

Refer to the original PR: #5406

Enable HangWatcher for both main browser thread and in-process renderer
thread. There are some changes in the HangWatcher enums to support
single-process mode.

b/396518491

Cherry pick PR #6857: Use environmental variables for on-host sharding (

#6887)

Refer to the original PR: #6857

Chrome test launcher doesn't support shard related command line
arguments.
Also disable flaky tests including all of the Blink unit test.

Issue: 436300102

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Co-authored-by: Igor Sarkisov <isarkisov@google.com>

Cherry pick PR #6668: Add BooleanHung definition to cobalt-specific e…

…nums.xml. (#6779)

Refer to the original PR: #6668

Add BooleanHung definition to cobalt-specific enums.xml. It's not picked
up from the main file main/tools/metrics/histograms/enums.xml

Bug: 432566177

Co-authored-by: Anton <antonlunev@google.com>

Cherry pick PR #6699: cobalt/shell: Remove origin trials deps (#6715)

Refer to the original PR: #6699

Origin Trials are for experimenting with Web features that are not yet
ready for production. Cobalt has no need for such a feature, since it is
not delivering new features for apps, but delivering a base for browsing
and media playback.
    
Test: out/android-arm_devel/bin/run_cobalt_browsertests -v
Test: out/android-arm_devel/cobalt_unittests -v
Fixed: 431035934

Co-authored-by: Adam Walls <avvall@google.com>

Cherry pick PR #5250: [Build] Add platform arg to build script (#6626)

Refer to the original PR: #5250

When platforms is provided, build only the platforms.

b/393447640

Co-authored-by: Colin Liang <zhongqi.liang.4u@gmail.com>
Co-authored-by: Colin Liang <colinliang@google.com>

Cherry pick PR #6460: Use a copy of ContextLifecycleObserver for exit…

… notifications (#6553)

Refer to the original PR: #6460

We see a crash in blink::HeapObserverSet::AddObserver where the set
called this function while being iterated over.
HeapObserverSet<ContextLifecycleObserver> is only held in the
ContextLifecycleNotifier, so we are quite certain this is where the
add-while-iterating issue happens. This is an attempt to fix.

Bug: 427982512

Co-authored-by: johnx <johnx@google.com>

Cherry pick PR #6425: BACKPORT: Export GetFieldTrialParamByFeatureAsT…

…imeDelta function (#6432)

Refer to the original PR: #6425

This PR backports
https://chromium-review.googlesource.com/c/chromium/src/+/4891966 to
help implement the Chrobalt-Starboard Features Extension. This adds the
necessary header function to help convert base::TimeDelta feature
parameters to their respective int64_t values under Starboard.

This change is backported from m120+. There are no revisions added to
this cherry-pick.

Bug: 416039556

Original Commit Description:

This CL exports GetFieldTrialParamByFeatureAsTimeDelta function to be
accessible from outside.

Change-Id: I25d3da13dabf6815cf5e1f6dbfa7e86c01b0b540 Reviewed-on:
https://chromium-review.googlesource.com/c/chromium/src/+/4891966
(cherry picked from commit fedb8270fc77e0f79a79cdfd8efbdc7ebb25bdec)

Co-authored-by: John Ocampo <johneocampo@google.com>
Co-authored-by: Minoru Chikamune <chikamune@chromium.org>