cc: Add eviction tile queue construct (and iterate) perftests.

cc: Add eviction tile queue construct (and iterate) perftests.

This patch adds construct as well as construct and iterate perftests
for the eviction tile priority queue.

Initial runs (from my macbook):
[ RUN      ] TileManagerPerfTest.EvictionTileQueueConstruct
*RESULT tile_manager_eviction_tile_queue_construct: 2= 412610.25 runs/s
*RESULT tile_manager_eviction_tile_queue_construct: 10= 48552.328125 runs/s
*RESULT tile_manager_eviction_tile_queue_construct: 100= 1245.8426513671875 runs/s
[       OK ] TileManagerPerfTest.EvictionTileQueueConstruct (6185 ms)
[ RUN      ] TileManagerPerfTest.EvictionTileQueueConstructAndIterate
*RESULT tile_manager_eviction_tile_queue_construct_and_iterate: 2_16= 3109.413818359375 runs/s
*RESULT tile_manager_eviction_tile_queue_construct_and_iterate: 2_32= 2810.639404296875 runs/s
*RESULT tile_manager_eviction_tile_queue_construct_and_iterate: 2_64= 2365.239990234375 runs/s
*RESULT tile_manager_eviction_tile_queue_construct_and_iterate: 2_128= 1793.8878173828125 runs/s
[       OK ] TileManagerPerfTest.EvictionTileQueueConstructAndIterate (8358 ms)

R=reveman

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=285645

[vmpstr, 2014-07-22 00:13:06]

PTAL

[reveman, 2014-07-22 00:14:27]

lgtm

[vmpstr, 2014-07-24 16:46:16]

The CQ bit was checked by vmpstr@chromium.org

[commit-bot: I haz the power, 2014-07-24 16:47:24]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/vmpstr@chromium.org/410523002/1

[vmpstr, 2014-07-24 18:25:35]

The CQ bit was unchecked by vmpstr@chromium.org

[vmpstr, 2014-07-25 16:40:19]

The CQ bit was checked by vmpstr@chromium.org

[commit-bot: I haz the power, 2014-07-25 16:41:40]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/vmpstr@chromium.org/410523002/20001

[commit-bot: I haz the power, 2014-07-25 18:42:11]

FYI, CQ is re-trying this CL (attempt #1).
The failing builders are:
  linux_chromium_clang_dbg on tryserver.chromium
(http://build.chromium.org/p/tryserver.chromium/builders/linux_chromium_clang_...)

[commit-bot: I haz the power, 2014-07-25 18:51:02]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2014-07-25 18:51:03]

Try jobs failed on following builders:
  linux_chromium_clang_dbg on tryserver.chromium
(http://build.chromium.org/p/tryserver.chromium/builders/linux_chromium_clang_...)

[vmpstr, 2014-07-25 19:13:42]

The CQ bit was checked by vmpstr@chromium.org

[commit-bot: I haz the power, 2014-07-25 19:14:43]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/vmpstr@chromium.org/410523002/20001

[commit-bot: I haz the power, 2014-07-25 19:54:58]

Change committed as 285645