cc: Change TileManager iterators to be queues.

This patch is mostly just moving code around. It moves the iterators
from tile manager to be in separate files, renames them to be queues.

It also adds a tile manager client interface for building the queues.

The rest is just fix ups for the tests.

R=reveman

Review URL: https://codereview.chromium.org/406543003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@284506 0039d316-1c4b-4281-b951-d872f2087c98

• cc/BUILD.gn[diff]
• cc/cc.gyp[diff]
• cc/layers/picture_layer_impl.cc[diff]
• cc/layers/picture_layer_impl.h[diff]
• cc/resources/eviction_tile_priority_queue.cc[Added - diff]
• cc/resources/eviction_tile_priority_queue.h[Added - diff]
• cc/resources/raster_tile_priority_queue.cc[Added - diff]
• cc/resources/raster_tile_priority_queue.h[Added - diff]
• cc/resources/tile_manager.cc[diff]
• cc/resources/tile_manager.h[diff]
• cc/resources/tile_manager_perftest.cc[diff]
• cc/resources/tile_manager_unittest.cc[diff]
• cc/test/fake_tile_manager_client.cc[diff]
• cc/test/fake_tile_manager_client.h[diff]
• cc/trees/layer_tree_host_impl.cc[diff]
• cc/trees/layer_tree_host_impl.h[diff]
• cc/trees/layer_tree_host_impl_unittest.cc[diff]