Revert "Added a call to ActivityManager.isLowRamDevice() from SysUtils.detectLowEndDevice()."

Revert "Added a call to ActivityManager.isLowRamDevice() from SysUtils.detectLowEndDevice()."

This reverts commit 80dc8d87cfd1ef70541c101a355965f3a7a74415.

Some devices in the wild with 1GB of RAM are returning true for
ActivityManager.isLowRamDevice(), causing us to inappropriately enable
aggressive memory optimizations designed for 512MB devices.  Change back
to only considering the true memory capacity of the device.

BUG=568192, 459781
Review URL: https://codereview.chromium.org/1514713002

Cr-Commit-Position: refs/heads/master@{#364619}
(cherry picked from commit 1dc262725270493bf333d53888319acacc5e8baa)

Committed: https://chromium.googlesource.com/chromium/src/+/0d1cb19aeb0237c314f58d902e862d51bb9aad1a

[aelias_OOO_until_Jul13, 2015-12-11 20:36:45]

Description was changed from

==========
Revert "Added a call to ActivityManager.isLowRamDevice() from
SysUtils.detectLowEndDevice()."

This reverts commit 80dc8d87cfd1ef70541c101a355965f3a7a74415.

Some devices in the wild with 1GB of RAM are returning true for
ActivityManager.isLowRamDevice(), causing us to inappropriately enable
aggressive memory optimizations designed for 512MB devices.  Change back
to only considering the true memory capacity of the device.

BUG=568192, 459781

Review URL: https://codereview.chromium.org/1514713002

Cr-Commit-Position: refs/heads/master@{#364619}
(cherry picked from commit 1dc262725270493bf333d53888319acacc5e8baa)
==========

to

==========
Revert "Added a call to ActivityManager.isLowRamDevice() from
SysUtils.detectLowEndDevice()."

This reverts commit 80dc8d87cfd1ef70541c101a355965f3a7a74415.

Some devices in the wild with 1GB of RAM are returning true for
ActivityManager.isLowRamDevice(), causing us to inappropriately enable
aggressive memory optimizations designed for 512MB devices.  Change back
to only considering the true memory capacity of the device.

BUG=568192, 459781

Review URL: https://codereview.chromium.org/1514713002

Cr-Commit-Position: refs/heads/master@{#364619}
(cherry picked from commit 1dc262725270493bf333d53888319acacc5e8baa)

Committed:
https://chromium.googlesource.com/chromium/src/+/0d1cb19aeb0237c314f58d902e86...
==========

[aelias_OOO_until_Jul13, 2015-12-11 20:36:46]

Committed patchset #1 (id:1) manually as
0d1cb19aeb0237c314f58d902e862d51bb9aad1a (tree was closed).