Revert of DevTools: Make WorkerThreadDebugger available for Worklets

Revert of DevTools: Make WorkerThreadDebugger available for Worklets (patchset #8 id:360001 of https://codereview.chromium.org/2456733002/ )

Reason for revert:
The layout test animation-worklet-console.html is failing on WebKit Linux Precise Leak bot:

https://build.chromium.org/p/chromium.webkit/builders/WebKit%20Linux%20Precise%20Leak/builds/1566

Original issue's description:
> DevTools: Make WorkerThreadDebugger available for Worklets
>
> DevTools is now disabled on Worklets because worker's debugger infrastructure(*)
> cannot host multiple worklet execution contexts on a single thread.
> (*) Worklet has been implemented on the worker infrastructure.
>
> To support it, this CL does following things:
>
> - This expands 1:1 relationship between WorkerThreadDebugger and WorkerThread to
>   1:M relationship. The debugger has a ID-WorkerThread map to manage multiple
>   WorkerThreads. WorkerThread is added when worklet context is created and
>   removed when the context is destroyed.
>
> - This decouples lifetime of WorkerThreadDebugger from lifetime of worklet
>   context. Before this CL, the debugger has the same lifetime of the context.
>   This prevents the debugger from hosting multiple contexts. After this CL,
>   the debugger has the same lifetime of WorkerBackingThread, and attaches to
>   worklet context when it's created.
>
> DesignDoc: https://docs.google.com/document/d/1v0dNB6jWMe7w6OeK-Vlnn-Q4qW7KI4m97LGnMefUx1k/edit
>
> BUG=646559
>
> Committed: https://crrev.com/46d040e09230a0a04c61fc06d88636b9c3dfb627
> Cr-Commit-Position: refs/heads/master@{#430558}

TBR=dgozman@chromium.org,falken@chromium.org,haraken@chromium.org,nhiroki@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.

NOTREECHECKS=true
NOTRY=true
BUG=646559
Committed: https://crrev.com/c023fcba8a6c9ca521c4c2a9f8921beaab18604e
Cr-Commit-Position: refs/heads/master@{#430638}

[xlai (Olivia), 2016-11-08 16:51:52]

Created Revert of DevTools: Make WorkerThreadDebugger available for Worklets

[xlai (Olivia), 2016-11-08 16:52:37]

Description was changed from

==========
Revert of DevTools: Make WorkerThreadDebugger available for Worklets (patchset
#8 id:360001 of https://codereview.chromium.org/2456733002/ )

Reason for revert:
The layout test animation-worklet-console.html is failing on WebKit Linux
Precise Leak bot:

https://build.chromium.org/p/chromium.webkit/builders/WebKit%20Linux%20Precis...

Original issue's description:
> DevTools: Make WorkerThreadDebugger available for Worklets
> 
> DevTools is now disabled on Worklets because worker's debugger
infrastructure(*)
> cannot host multiple worklet execution contexts on a single thread.
> (*) Worklet has been implemented on the worker infrastructure.
> 
> To support it, this CL does following things:
> 
> - This expands 1:1 relationship between WorkerThreadDebugger and WorkerThread
to
>   1:M relationship. The debugger has a ID-WorkerThread map to manage multiple
>   WorkerThreads. WorkerThread is added when worklet context is created and
>   removed when the context is destroyed.
> 
> - This decouples lifetime of WorkerThreadDebugger from lifetime of worklet
>   context. Before this CL, the debugger has the same lifetime of the context.
>   This prevents the debugger from hosting multiple contexts. After this CL,
>   the debugger has the same lifetime of WorkerBackingThread, and attaches to
>   worklet context when it's created.
> 
> DesignDoc:
https://docs.google.com/document/d/1v0dNB6jWMe7w6OeK-Vlnn-Q4qW7KI4m97LGnMefUx...
> 
> BUG=646559
> 
> Committed: https://crrev.com/46d040e09230a0a04c61fc06d88636b9c3dfb627
> Cr-Commit-Position: refs/heads/master@{#430558}

TBR=dgozman@chromium.org,falken@chromium.org,haraken@chromium.org,nhiroki@chr...
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=646559
==========

to

==========
Revert of DevTools: Make WorkerThreadDebugger available for Worklets (patchset
#8 id:360001 of https://codereview.chromium.org/2456733002/ )

Reason for revert:
The layout test animation-worklet-console.html is failing on WebKit Linux
Precise Leak bot:

https://build.chromium.org/p/chromium.webkit/builders/WebKit%20Linux%20Precis...

Original issue's description:
> DevTools: Make WorkerThreadDebugger available for Worklets
> 
> DevTools is now disabled on Worklets because worker's debugger
infrastructure(*)
> cannot host multiple worklet execution contexts on a single thread.
> (*) Worklet has been implemented on the worker infrastructure.
> 
> To support it, this CL does following things:
> 
> - This expands 1:1 relationship between WorkerThreadDebugger and WorkerThread
to
>   1:M relationship. The debugger has a ID-WorkerThread map to manage multiple
>   WorkerThreads. WorkerThread is added when worklet context is created and
>   removed when the context is destroyed.
> 
> - This decouples lifetime of WorkerThreadDebugger from lifetime of worklet
>   context. Before this CL, the debugger has the same lifetime of the context.
>   This prevents the debugger from hosting multiple contexts. After this CL,
>   the debugger has the same lifetime of WorkerBackingThread, and attaches to
>   worklet context when it's created.
> 
> DesignDoc:
https://docs.google.com/document/d/1v0dNB6jWMe7w6OeK-Vlnn-Q4qW7KI4m97LGnMefUx...
> 
> BUG=646559
> 
> Committed: https://crrev.com/46d040e09230a0a04c61fc06d88636b9c3dfb627
> Cr-Commit-Position: refs/heads/master@{#430558}

TBR=dgozman@chromium.org,falken@chromium.org,haraken@chromium.org,nhiroki@chr...
# Skipping CQ checks because original CL landed less than 1 days ago.

NOTREECHECKS=true
NOTRY=true
BUG=646559
==========

[xlai (Olivia), 2016-11-08 16:52:50]

The CQ bit was checked by xlai@chromium.org

[commit-bot: I haz the power, 2016-11-08 16:53:06]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-11-08 16:59:04]

Description was changed from

==========
Revert of DevTools: Make WorkerThreadDebugger available for Worklets (patchset
#8 id:360001 of https://codereview.chromium.org/2456733002/ )

Reason for revert:
The layout test animation-worklet-console.html is failing on WebKit Linux
Precise Leak bot:

https://build.chromium.org/p/chromium.webkit/builders/WebKit%20Linux%20Precis...

Original issue's description:
> DevTools: Make WorkerThreadDebugger available for Worklets
> 
> DevTools is now disabled on Worklets because worker's debugger
infrastructure(*)
> cannot host multiple worklet execution contexts on a single thread.
> (*) Worklet has been implemented on the worker infrastructure.
> 
> To support it, this CL does following things:
> 
> - This expands 1:1 relationship between WorkerThreadDebugger and WorkerThread
to
>   1:M relationship. The debugger has a ID-WorkerThread map to manage multiple
>   WorkerThreads. WorkerThread is added when worklet context is created and
>   removed when the context is destroyed.
> 
> - This decouples lifetime of WorkerThreadDebugger from lifetime of worklet
>   context. Before this CL, the debugger has the same lifetime of the context.
>   This prevents the debugger from hosting multiple contexts. After this CL,
>   the debugger has the same lifetime of WorkerBackingThread, and attaches to
>   worklet context when it's created.
> 
> DesignDoc:
https://docs.google.com/document/d/1v0dNB6jWMe7w6OeK-Vlnn-Q4qW7KI4m97LGnMefUx...
> 
> BUG=646559
> 
> Committed: https://crrev.com/46d040e09230a0a04c61fc06d88636b9c3dfb627
> Cr-Commit-Position: refs/heads/master@{#430558}

TBR=dgozman@chromium.org,falken@chromium.org,haraken@chromium.org,nhiroki@chr...
# Skipping CQ checks because original CL landed less than 1 days ago.

NOTREECHECKS=true
NOTRY=true
BUG=646559
==========

to

==========
Revert of DevTools: Make WorkerThreadDebugger available for Worklets (patchset
#8 id:360001 of https://codereview.chromium.org/2456733002/ )

Reason for revert:
The layout test animation-worklet-console.html is failing on WebKit Linux
Precise Leak bot:

https://build.chromium.org/p/chromium.webkit/builders/WebKit%20Linux%20Precis...

Original issue's description:
> DevTools: Make WorkerThreadDebugger available for Worklets
> 
> DevTools is now disabled on Worklets because worker's debugger
infrastructure(*)
> cannot host multiple worklet execution contexts on a single thread.
> (*) Worklet has been implemented on the worker infrastructure.
> 
> To support it, this CL does following things:
> 
> - This expands 1:1 relationship between WorkerThreadDebugger and WorkerThread
to
>   1:M relationship. The debugger has a ID-WorkerThread map to manage multiple
>   WorkerThreads. WorkerThread is added when worklet context is created and
>   removed when the context is destroyed.
> 
> - This decouples lifetime of WorkerThreadDebugger from lifetime of worklet
>   context. Before this CL, the debugger has the same lifetime of the context.
>   This prevents the debugger from hosting multiple contexts. After this CL,
>   the debugger has the same lifetime of WorkerBackingThread, and attaches to
>   worklet context when it's created.
> 
> DesignDoc:
https://docs.google.com/document/d/1v0dNB6jWMe7w6OeK-Vlnn-Q4qW7KI4m97LGnMefUx...
> 
> BUG=646559
> 
> Committed: https://crrev.com/46d040e09230a0a04c61fc06d88636b9c3dfb627
> Cr-Commit-Position: refs/heads/master@{#430558}

TBR=dgozman@chromium.org,falken@chromium.org,haraken@chromium.org,nhiroki@chr...
# Skipping CQ checks because original CL landed less than 1 days ago.

NOTREECHECKS=true
NOTRY=true
BUG=646559
==========

[commit-bot: I haz the power, 2016-11-08 16:59:05]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-11-08 17:05:36]

Description was changed from

==========
Revert of DevTools: Make WorkerThreadDebugger available for Worklets (patchset
#8 id:360001 of https://codereview.chromium.org/2456733002/ )

Reason for revert:
The layout test animation-worklet-console.html is failing on WebKit Linux
Precise Leak bot:

https://build.chromium.org/p/chromium.webkit/builders/WebKit%20Linux%20Precis...

Original issue's description:
> DevTools: Make WorkerThreadDebugger available for Worklets
> 
> DevTools is now disabled on Worklets because worker's debugger
infrastructure(*)
> cannot host multiple worklet execution contexts on a single thread.
> (*) Worklet has been implemented on the worker infrastructure.
> 
> To support it, this CL does following things:
> 
> - This expands 1:1 relationship between WorkerThreadDebugger and WorkerThread
to
>   1:M relationship. The debugger has a ID-WorkerThread map to manage multiple
>   WorkerThreads. WorkerThread is added when worklet context is created and
>   removed when the context is destroyed.
> 
> - This decouples lifetime of WorkerThreadDebugger from lifetime of worklet
>   context. Before this CL, the debugger has the same lifetime of the context.
>   This prevents the debugger from hosting multiple contexts. After this CL,
>   the debugger has the same lifetime of WorkerBackingThread, and attaches to
>   worklet context when it's created.
> 
> DesignDoc:
https://docs.google.com/document/d/1v0dNB6jWMe7w6OeK-Vlnn-Q4qW7KI4m97LGnMefUx...
> 
> BUG=646559
> 
> Committed: https://crrev.com/46d040e09230a0a04c61fc06d88636b9c3dfb627
> Cr-Commit-Position: refs/heads/master@{#430558}

TBR=dgozman@chromium.org,falken@chromium.org,haraken@chromium.org,nhiroki@chr...
# Skipping CQ checks because original CL landed less than 1 days ago.

NOTREECHECKS=true
NOTRY=true
BUG=646559
==========

to

==========
Revert of DevTools: Make WorkerThreadDebugger available for Worklets (patchset
#8 id:360001 of https://codereview.chromium.org/2456733002/ )

Reason for revert:
The layout test animation-worklet-console.html is failing on WebKit Linux
Precise Leak bot:

https://build.chromium.org/p/chromium.webkit/builders/WebKit%20Linux%20Precis...

Original issue's description:
> DevTools: Make WorkerThreadDebugger available for Worklets
>
> DevTools is now disabled on Worklets because worker's debugger
infrastructure(*)
> cannot host multiple worklet execution contexts on a single thread.
> (*) Worklet has been implemented on the worker infrastructure.
>
> To support it, this CL does following things:
>
> - This expands 1:1 relationship between WorkerThreadDebugger and WorkerThread
to
>   1:M relationship. The debugger has a ID-WorkerThread map to manage multiple
>   WorkerThreads. WorkerThread is added when worklet context is created and
>   removed when the context is destroyed.
>
> - This decouples lifetime of WorkerThreadDebugger from lifetime of worklet
>   context. Before this CL, the debugger has the same lifetime of the context.
>   This prevents the debugger from hosting multiple contexts. After this CL,
>   the debugger has the same lifetime of WorkerBackingThread, and attaches to
>   worklet context when it's created.
>
> DesignDoc:
https://docs.google.com/document/d/1v0dNB6jWMe7w6OeK-Vlnn-Q4qW7KI4m97LGnMefUx...
>
> BUG=646559
>
> Committed: https://crrev.com/46d040e09230a0a04c61fc06d88636b9c3dfb627
> Cr-Commit-Position: refs/heads/master@{#430558}

TBR=dgozman@chromium.org,falken@chromium.org,haraken@chromium.org,nhiroki@chr...
# Skipping CQ checks because original CL landed less than 1 days ago.

NOTREECHECKS=true
NOTRY=true
BUG=646559

Committed: https://crrev.com/c023fcba8a6c9ca521c4c2a9f8921beaab18604e
Cr-Commit-Position: refs/heads/master@{#430638}
==========

[commit-bot: I haz the power, 2016-11-08 17:05:37]

Patchset 1 (id:??) landed as
https://crrev.com/c023fcba8a6c9ca521c4c2a9f8921beaab18604e
Cr-Commit-Position: refs/heads/master@{#430638}

[haraken, 2016-11-08 23:34:46]

LGTM to revert