Change-Id: I62daa5938c93f0fce0c90ad3b67a2eb590120e38

This reverts commit b0fec6ab.

Change-Id: I9acd8ee0423f22d92138f11579611ff959331013

This reverts commit 9650b9d7.

Change-Id: I841c4a4734170fda63469e32adc10703aa4bf0fa

Change-Id: I14adfd32622152abdc22c16429db38f6724628a4

Change-Id: I9a19eb96907f674e3ce1e573f5dd49f0fbf2ae4f

Change-Id: I5cdff078159a379bc48f1d8e249e144c6d27c946

Change-Id: I9a67dec9c198ce1dca90c086be55ad050c5c6f6c

Brings back most of Jim's previous patch for choosing
partitioning based on variance while making it compatible
with the current state of the code. Also adds a
nonrd_use_partition() function to recursively encode  for any
arbitrary sb_type decisions within a 64x64 block; and
includes some refactoring.

Currently, when the VAR_BASED_PARTITIONING mode is turned on
for speed 7, there is a 10+% speed-up observed.

Experiments/improvements with this new partitioning method
will be conducted subsequently.

Change-Id: Ie6f43bfbde30583e941f450bf07c3b48828c9571

Change-Id: I916b1e646d9fe142d3483039eb6cc72464529832

Change-Id: I641a75dd75cd3c53a20eb4dbceb7a9b70a5a0e4d

Change-Id: Id84a43583af57889e87462ce8b76e5a552f44826

Clean-ups include
a. redundant code in rt -5 speed feature settings
b. code that guarantees square block availability in
rd_auto_partition_range()

Change-Id: Ic7b04d45b6dc15c461e0edbbb4e78aec20348291

These were discovered by ActiveMapTest.

Change-Id: Ifcd305ae2d954b6ec7edcaed0f80baf18c769e01

Change-Id: I894977e6655630823145c60c8258551bd3c8c76b

Change-Id: I8c3be3ed4d6bbc5fa3042a2d5637407d4d56afee

Change-Id: I754a5c5e342cfa7c52c1a75424f18aea8b7657d2

Change-Id: I6e2fec2814fd366a1ce1321208d3b0e8aa0d98b0

Change-Id: Ic0d74ab3a4c0c854fbcf59d9df5212c218bc68f9

Change-Id: Ie68eefddf9b0120021668cf21dc2c6fc837c50ac

Change-Id: Id63e114a8f0615dbafd6a816019cdebffb983d2c

Change-Id: I7ad79c061ad4efbc4914ac49723b48183fdbdd47