The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/1007faf2a13282060f7227e8cb6ea96981c6f9eb

commit 1007faf2a13282060f7227e8cb6ea96981c6f9eb
Author: boliu <boliu@chromium.org>
Date: Tue Aug 16 17:30:52 2016

Revert of Add MemoryCoordinatorClient (patchset #3 id:40001 of https://codereview.chromium.org/2230433002/ )

Reason for revert:
Null pointer crash. See  crbug.com/638274 

BUG= 638274 

Original issue's description:
> Add MemoryCoordinatorClient
>
> Also move MemoryCoordinator from core/dom to platform/. This is a preparation for experimenting purge and suspend [1,2].
>
> [1] https://docs.google.com/document/d/1EgLimgxWK5DGhptnNVbEGSvVn6Q609ZJaBkLjEPRJvI/edit
> [2] https://codereview.chromium.org/2130683002/
>
> Committed: https://crrev.com/75ce9c3e2c15f2df215184026162dc505df37e4b
> Cr-Commit-Position: refs/heads/master@{#412171}

TBR=esprehn@chromium.org,haraken@chromium.org,tasak@google.com,bashi@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Review-Url: https://codereview.chromium.org/2252743002
Cr-Commit-Position: refs/heads/master@{#412276}

[modify] https://crrev.com/1007faf2a13282060f7227e8cb6ea96981c6f9eb/content/renderer/render_thread_impl.cc
[modify] https://crrev.com/1007faf2a13282060f7227e8cb6ea96981c6f9eb/third_party/WebKit/Source/core/core.gypi
[add] https://crrev.com/1007faf2a13282060f7227e8cb6ea96981c6f9eb/third_party/WebKit/Source/core/dom/MemoryCoordinator.cpp
[add] https://crrev.com/1007faf2a13282060f7227e8cb6ea96981c6f9eb/third_party/WebKit/Source/core/dom/MemoryCoordinator.h
[modify] https://crrev.com/1007faf2a13282060f7227e8cb6ea96981c6f9eb/third_party/WebKit/Source/core/fetch/MemoryCache.cpp
[modify] https://crrev.com/1007faf2a13282060f7227e8cb6ea96981c6f9eb/third_party/WebKit/Source/core/fetch/MemoryCache.h
[delete] https://crrev.com/04c2fb7e9ca37c6b2ab596bffcb5a16d7b8ae4d3/third_party/WebKit/Source/platform/MemoryCoordinator.cpp
[delete] https://crrev.com/04c2fb7e9ca37c6b2ab596bffcb5a16d7b8ae4d3/third_party/WebKit/Source/platform/MemoryCoordinator.h
[modify] https://crrev.com/1007faf2a13282060f7227e8cb6ea96981c6f9eb/third_party/WebKit/Source/platform/blink_platform.gypi
[rename] https://crrev.com/1007faf2a13282060f7227e8cb6ea96981c6f9eb/third_party/WebKit/Source/web/WebMemoryCoordinator.cpp
[modify] https://crrev.com/1007faf2a13282060f7227e8cb6ea96981c6f9eb/third_party/WebKit/Source/web/web.gypi
[modify] https://crrev.com/1007faf2a13282060f7227e8cb6ea96981c6f9eb/third_party/WebKit/public/blink_headers.gypi
[rename] https://crrev.com/1007faf2a13282060f7227e8cb6ea96981c6f9eb/third_party/WebKit/public/web/WebMemoryCoordinator.h

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/5f4c7892122d68b2588ae2bd804fc2dc75e15596

commit 5f4c7892122d68b2588ae2bd804fc2dc75e15596
Author: bashi <bashi@chromium.org>
Date: Thu Aug 18 23:06:08 2016

Reland: Add MemoryCoordinatorClient

Make MemoryCoordinator garbage collected to make sure that MemoryCoordinator::trace()
is called. Garbage collected MemoryCoordinatorClient will be removed from |m_clients|.

Original description:

Also move MemoryCoordinator from core/dom to platform/. This is a preparation for experimenting purge and suspend [1,2].

[1] https://docs.google.com/document/d/1EgLimgxWK5DGhptnNVbEGSvVn6Q609ZJaBkLjEPRJvI/edit
[2] https://codereview.chromium.org/2130683002/

TBR=esprehn@chromium.org,haraken@chromium.org
BUG= 638274 

Review-Url: https://codereview.chromium.org/2251853005
Cr-Commit-Position: refs/heads/master@{#412966}

[modify] https://crrev.com/5f4c7892122d68b2588ae2bd804fc2dc75e15596/content/renderer/render_thread_impl.cc
[modify] https://crrev.com/5f4c7892122d68b2588ae2bd804fc2dc75e15596/third_party/WebKit/Source/core/core.gypi
[delete] https://crrev.com/fc56b0062cb12b75c7465710e96fe51f86355913/third_party/WebKit/Source/core/dom/MemoryCoordinator.cpp
[delete] https://crrev.com/fc56b0062cb12b75c7465710e96fe51f86355913/third_party/WebKit/Source/core/dom/MemoryCoordinator.h
[modify] https://crrev.com/5f4c7892122d68b2588ae2bd804fc2dc75e15596/third_party/WebKit/Source/core/fetch/MemoryCache.cpp
[modify] https://crrev.com/5f4c7892122d68b2588ae2bd804fc2dc75e15596/third_party/WebKit/Source/core/fetch/MemoryCache.h
[add] https://crrev.com/5f4c7892122d68b2588ae2bd804fc2dc75e15596/third_party/WebKit/Source/platform/MemoryCoordinator.cpp
[add] https://crrev.com/5f4c7892122d68b2588ae2bd804fc2dc75e15596/third_party/WebKit/Source/platform/MemoryCoordinator.h
[modify] https://crrev.com/5f4c7892122d68b2588ae2bd804fc2dc75e15596/third_party/WebKit/Source/platform/blink_platform.gypi
[rename] https://crrev.com/5f4c7892122d68b2588ae2bd804fc2dc75e15596/third_party/WebKit/Source/platform/exported/WebMemoryCoordinator.cpp
[modify] https://crrev.com/5f4c7892122d68b2588ae2bd804fc2dc75e15596/third_party/WebKit/Source/web/web.gypi
[modify] https://crrev.com/5f4c7892122d68b2588ae2bd804fc2dc75e15596/third_party/WebKit/public/blink_headers.gypi
[rename] https://crrev.com/5f4c7892122d68b2588ae2bd804fc2dc75e15596/third_party/WebKit/public/platform/WebMemoryCoordinator.h