link to loading-dev@ discussion FYI; https://groups.google.com/a/chromium.org/d/topic/loading-dev/gD-MPRcfwVA/discussion

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/52cfbdee4d6c72e941cb316ae9e1d5cc8301b2a4

commit 52cfbdee4d6c72e941cb316ae9e1d5cc8301b2a4
Author: toyoshim <toyoshim@chromium.org>
Date: Fri Dec 09 06:58:41 2016

Mechanical style fixes: History.cpp and Location.cpp

This patch fixes some style errors caused at the Blink style change,
and some long living other style nits.

BUG= 670237 

Review-Url: https://codereview.chromium.org/2553383002
Cr-Commit-Position: refs/heads/master@{#437487}

[modify] https://crrev.com/52cfbdee4d6c72e941cb316ae9e1d5cc8301b2a4/third_party/WebKit/Source/core/frame/History.cpp
[modify] https://crrev.com/52cfbdee4d6c72e941cb316ae9e1d5cc8301b2a4/third_party/WebKit/Source/core/frame/History.h
[modify] https://crrev.com/52cfbdee4d6c72e941cb316ae9e1d5cc8301b2a4/third_party/WebKit/Source/core/frame/Location.cpp

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/8cd793e6488686201c9099951b7211abfcf5593f

commit 8cd793e6488686201c9099951b7211abfcf5593f
Author: toyoshim <toyoshim@chromium.org>
Date: Thu Dec 15 06:25:19 2016

FasterLocationReload: use ReloadMainResource for JS exposed reloads

Now all reloads triggered by user interfaces are replaced by
ReloadMainResource, but Location.reload() and History.go() still call
the traditional Reload.

This patch changes them to call ReloadMainResource insteads under a
runtime flag. This flag will be wired to a field study flag later.

This is discussed at loading-dev@ in the following thread.
https://groups.google.com/a/chromium.org/d/topic/loading-dev/gD-MPRcfwVA/discussion

BUG= 670237 

Review-Url: https://codereview.chromium.org/2555963003
Cr-Commit-Position: refs/heads/master@{#438766}

[add] https://crrev.com/8cd793e6488686201c9099951b7211abfcf5593f/third_party/WebKit/LayoutTests/http/tests/cache/location-reload.html
[add] https://crrev.com/8cd793e6488686201c9099951b7211abfcf5593f/third_party/WebKit/LayoutTests/http/tests/cache/resources/location-reload-window.html
[modify] https://crrev.com/8cd793e6488686201c9099951b7211abfcf5593f/third_party/WebKit/Source/core/frame/History.cpp
[modify] https://crrev.com/8cd793e6488686201c9099951b7211abfcf5593f/third_party/WebKit/Source/core/frame/LocalFrame.cpp
[modify] https://crrev.com/8cd793e6488686201c9099951b7211abfcf5593f/third_party/WebKit/Source/core/frame/Location.cpp
[modify] https://crrev.com/8cd793e6488686201c9099951b7211abfcf5593f/third_party/WebKit/Source/core/loader/NavigationScheduler.cpp
[modify] https://crrev.com/8cd793e6488686201c9099951b7211abfcf5593f/third_party/WebKit/Source/platform/RuntimeEnabledFeatures.in

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/ccf646e53afed85c5d06b501548f7c1520452d0d

commit ccf646e53afed85c5d06b501548f7c1520452d0d
Author: toyoshim <toyoshim@chromium.org>
Date: Mon Dec 19 08:35:47 2016

FasterLocationReload: Add a field trial flag to enable the feature

The feature is planned to be enabled step by step through a server side
configuration. This patch add a field trial flag and plumb it to the
Blink runtime flag to enable it.

BUG= 670237 

Review-Url: https://codereview.chromium.org/2572063002
Cr-Commit-Position: refs/heads/master@{#439434}

[modify] https://crrev.com/ccf646e53afed85c5d06b501548f7c1520452d0d/chrome/app/generated_resources.grd
[modify] https://crrev.com/ccf646e53afed85c5d06b501548f7c1520452d0d/chrome/browser/about_flags.cc
[modify] https://crrev.com/ccf646e53afed85c5d06b501548f7c1520452d0d/content/child/runtime_features.cc
[modify] https://crrev.com/ccf646e53afed85c5d06b501548f7c1520452d0d/content/public/common/content_features.cc
[modify] https://crrev.com/ccf646e53afed85c5d06b501548f7c1520452d0d/content/public/common/content_features.h
[modify] https://crrev.com/ccf646e53afed85c5d06b501548f7c1520452d0d/third_party/WebKit/Source/web/WebRuntimeFeatures.cpp
[modify] https://crrev.com/ccf646e53afed85c5d06b501548f7c1520452d0d/third_party/WebKit/public/web/WebRuntimeFeatures.h
[modify] https://crrev.com/ccf646e53afed85c5d06b501548f7c1520452d0d/tools/metrics/histograms/histograms.xml

ok, now it's ready for a field trial. I will make a change to enable this by 1:1 on Canary/Dev.

Now server side configuration is setup for a field study.
The feature should be enabled for 50% of Dev and Canary users on m57 and later versions.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/84b31e5ea7c346f66228ceb1c38034e8ec8425b6

commit 84b31e5ea7c346f66228ceb1c38034e8ec8425b6
Author: toyoshim <toyoshim@chromium.org>
Date: Mon Jan 23 20:16:24 2017

FasterLocationReload: Update Field Trial Testing Configuration

To setup the field trial to be ready for Beta channel, let me
update the configuration to run tests under the condition that
enables the feature.

BUG= 670237 

Review-Url: https://codereview.chromium.org/2644143004
Cr-Commit-Position: refs/heads/master@{#445459}

[modify] https://crrev.com/84b31e5ea7c346f66228ceb1c38034e8ec8425b6/testing/variations/fieldtrial_testing_config.json

 Issue 578941  has been merged into this issue.

https://www.chromestatus.com/feature/5724282256621568

Now the feature is going to be enabled on the stable.
I will use this bug even for cleanup patches.

Note: the feature is rolled out via experiment-control at m57, and enabled in the code base at m59. Also, old code path will be removed at m59.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/ea77fe5f9663714b8458b23dd996279baade45d6

commit ea77fe5f9663714b8458b23dd996279baade45d6
Author: toyoshim <toyoshim@chromium.org>
Date: Thu Mar 16 09:35:11 2017

Disable ReloadCacheControlBrowserTest if PlzNavigate is enabled

CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_site_isolation
TBR=kinuko@chromium.org
BUG= 671545 ,  670237 

Review-Url: https://codereview.chromium.org/2752073005
Cr-Commit-Position: refs/heads/master@{#457384}

[modify] https://crrev.com/ea77fe5f9663714b8458b23dd996279baade45d6/content/browser/loader/reload_cache_control_browsertest.cc

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/ec7d62a479fe6625a2a20295e346bfe92d42417c

commit ec7d62a479fe6625a2a20295e346bfe92d42417c
Author: toyoshim <toyoshim@chromium.org>
Date: Fri Mar 17 05:18:18 2017

FasterLocationReload: remove the field trial flag

Now that the feature is enabled by default on the stable m57
and the flag in the code base is enabled by default on trunk,
remove the field trial flag and old code path.

BUG= 670237 

Review-Url: https://codereview.chromium.org/2752203002
Cr-Commit-Position: refs/heads/master@{#457693}

[modify] https://crrev.com/ec7d62a479fe6625a2a20295e346bfe92d42417c/chrome/app/generated_resources.grd
[modify] https://crrev.com/ec7d62a479fe6625a2a20295e346bfe92d42417c/chrome/browser/about_flags.cc
[modify] https://crrev.com/ec7d62a479fe6625a2a20295e346bfe92d42417c/content/child/runtime_features.cc
[modify] https://crrev.com/ec7d62a479fe6625a2a20295e346bfe92d42417c/content/public/common/content_features.cc
[modify] https://crrev.com/ec7d62a479fe6625a2a20295e346bfe92d42417c/content/public/common/content_features.h
[modify] https://crrev.com/ec7d62a479fe6625a2a20295e346bfe92d42417c/third_party/WebKit/Source/core/frame/History.cpp
[modify] https://crrev.com/ec7d62a479fe6625a2a20295e346bfe92d42417c/third_party/WebKit/Source/core/frame/LocalFrame.cpp
[modify] https://crrev.com/ec7d62a479fe6625a2a20295e346bfe92d42417c/third_party/WebKit/Source/core/frame/Location.cpp
[modify] https://crrev.com/ec7d62a479fe6625a2a20295e346bfe92d42417c/third_party/WebKit/Source/core/loader/NavigationScheduler.cpp
[modify] https://crrev.com/ec7d62a479fe6625a2a20295e346bfe92d42417c/third_party/WebKit/Source/modules/plugins/DOMPluginArray.cpp
[modify] https://crrev.com/ec7d62a479fe6625a2a20295e346bfe92d42417c/third_party/WebKit/Source/platform/RuntimeEnabledFeatures.json5
[modify] https://crrev.com/ec7d62a479fe6625a2a20295e346bfe92d42417c/third_party/WebKit/Source/web/WebRuntimeFeatures.cpp
[modify] https://crrev.com/ec7d62a479fe6625a2a20295e346bfe92d42417c/third_party/WebKit/public/web/WebRuntimeFeatures.h

Now the feature is enabled for all users on all channels.