prerender: Don't set the priority to net::IDLE on Android.

prerender: Don't set the priority to net::IDLE on Android.

Resource requests issued by prerendering renderers have their priority
set to net::IDLE. This causes issues with content::ResourceScheduler,
leading to very poor loading performance for prerendered content.

This simply disables the prioritization on Android, as this is where the
priority lowering is the most problematic, and where potential downsides
from this patch are the most limited. This is a temporary fix.

BUG=652746
Review-Url: https://codereview.chromium.org/2399973003
Cr-Commit-Position: refs/heads/master@{#424131}
(cherry picked from commit 915cfe1d23cf249cff0b51b6f2a7434035d5e6c5)

Committed: https://chromium.googlesource.com/chromium/src/+/f49bbc55974f5e09484a38917d37877c3ef71251

[Benoit L, 2016-10-11 11:38:59]

Description was changed from

==========
prerender: Don't set the priority to net::IDLE on Android.

Resource requests issued by prerendering renderers have their priority
set to net::IDLE. This causes issues with content::ResourceScheduler,
leading to very poor loading performance for prerendered content.

This simply disables the prioritization on Android, as this is where the
priority lowering is the most problematic, and where potential downsides
from this patch are the most limited. This is a temporary fix.

BUG=652746

Review-Url: https://codereview.chromium.org/2399973003
Cr-Commit-Position: refs/heads/master@{#424131}
(cherry picked from commit 915cfe1d23cf249cff0b51b6f2a7434035d5e6c5)
==========

to

==========
prerender: Don't set the priority to net::IDLE on Android.

Resource requests issued by prerendering renderers have their priority
set to net::IDLE. This causes issues with content::ResourceScheduler,
leading to very poor loading performance for prerendered content.

This simply disables the prioritization on Android, as this is where the
priority lowering is the most problematic, and where potential downsides
from this patch are the most limited. This is a temporary fix.

BUG=652746

Review-Url: https://codereview.chromium.org/2399973003
Cr-Commit-Position: refs/heads/master@{#424131}
(cherry picked from commit 915cfe1d23cf249cff0b51b6f2a7434035d5e6c5)

Committed:
https://chromium.googlesource.com/chromium/src/+/f49bbc55974f5e09484a38917d37...
==========

[Benoit L, 2016-10-11 11:39:01]

Committed patchset #1 (id:1) manually as
f49bbc55974f5e09484a38917d37877c3ef71251.