Automatically applying components based on crash stacktrace and information from OWNERS files.

If this is incorrect, please apply the Test-Predator-Wrong-Components label.

Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/chromium/src/+/2a9513f5a7a74fac303c9be30957f16fa2285c67 (Kill a renderer if it sends an unexpected message before BPGM creation.).

If this is incorrect, please remove the owner and apply the Test-Predator-Wrong-CLs label.

Following the renderer kill from  crbug.com/753719 , there are a few more calls into BrowserPluginEmbedder where we just need to return due to the lack of a BrowserPluginGuestManager. I missed this one in the original CL.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/232d3d00928f78b5bacbeb5f5441292c47a8dd33

commit 232d3d00928f78b5bacbeb5f5441292c47a8dd33
Author: Kevin McNee <mcnee@chromium.org>
Date: Mon Oct 23 18:39:44 2017

Check for null BPGM in BrowserPluginEmbedder::ScreenInfoChanged

Following a renderer kill (see  crbug.com/753719 ), we may have a null
BrowserPluginGuestManager.

Bug:  777039 
Change-Id: Id1425226d342a522e3c0a8de8c6e5c992ef660cb
Reviewed-on: https://chromium-review.googlesource.com/732783
Reviewed-by: Ehsan Karamad <ekaramad@chromium.org>
Commit-Queue: Kevin McNee <mcnee@chromium.org>
Cr-Commit-Position: refs/heads/master@{#510860}
[modify] https://crrev.com/232d3d00928f78b5bacbeb5f5441292c47a8dd33/content/browser/browser_plugin/browser_plugin_embedder.cc

ClusterFuzz has detected this issue as fixed in range 510835:510937.

Detailed report: https://clusterfuzz.com/testcase?key=5674675668779008

Fuzzer: ipc_fuzzer_mut
Job Type: linux_asan_chrome_ipc
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000000
Crash State:
  content::BrowserPluginEmbedder::ScreenInfoChanged
  content::RenderWidgetHostImpl::NotifyScreenInfoChanged
  content::RenderWidgetHostViewAura::AddedToRootWindow
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_asan_chrome_ipc&range=508786:508862
Fixed: https://clusterfuzz.com/revisions?job=linux_asan_chrome_ipc&range=510835:510937

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5674675668779008

Additional requirements: Requires Gestures

See https://github.com/google/clusterfuzz-tools for more information.

If you suspect that the result above is incorrect, try re-doing that job on the test case report page.

ClusterFuzz testcase 5674675668779008 is verified as fixed, so closing issue as verified.

If this is incorrect, please add ClusterFuzz-Wrong label and re-open the issue.