cc: Remove ScheduleOnOriginThread() and CompleteOnOriginThread().

The task's job is performed in RunOnWorkerThread() and schedule or
complete are not needed as a part of task's job. Those are the
responsibilities of task's owner (TileManager - compositor thread).
This patch removes following functions which were basically needed for
async upload. Now raster buffer is provided to task at the time of ctor
and functionality of CompleteOnOriginThread() is moved to task's owner.

  ScheduleOnOriginThread()
  CompleteOnOriginThread()

New OnTaskCompleted() function calls corresponding function of task
owner. This patch implements following life cycle for the task.

  1. Task's owner creates task with all needed info on origin thread.
  2. Task is scheduled and run on worker thread.
  3. Completed task is processed on origin thread by task owner.
  4. Task is destroyed.

This patch also fixes few task related failing cc_perftests (607818).

BUG=499372, 599863, 607818, 613529
CQ_INCLUDE_TRYBOTS=tryserver.blink:linux_blink_rel

Review-Url: https://codereview.chromium.org/1866043006
Cr-Commit-Position: refs/heads/master@{#396218}

• cc/raster/raster_buffer_provider_perftest.cc[diff]
• cc/raster/raster_buffer_provider_unittest.cc[diff]
• cc/raster/task.cc[diff]
• cc/raster/task.h[diff]
• cc/raster/task_graph_runner_perftest.cc[diff]
• cc/raster/tile_task.cc[diff]
• cc/raster/tile_task.h[diff]
• cc/test/fake_tile_task_manager.cc[diff]
• cc/test/fake_tile_task_manager.h[diff]
• cc/test/task_graph_runner_test_template.h[diff]
• cc/tiles/gpu_image_decode_controller.cc[diff]
• cc/tiles/gpu_image_decode_controller.h[diff]
• cc/tiles/gpu_image_decode_controller_unittest.cc[diff]
• cc/tiles/software_image_decode_controller.cc[diff]
• cc/tiles/software_image_decode_controller_unittest.cc[diff]
• cc/tiles/tile_manager.cc[diff]
• cc/tiles/tile_manager.h[diff]
• cc/tiles/tile_manager_unittest.cc[diff]
• cc/tiles/tile_task_manager.cc[diff]
• cc/tiles/tile_task_manager.h[diff]