Building the New Task Manager UI (Phase 5)

This CL implements the first real observer of the new task manager -- the
NewTaskManagerTableModel that will adapt the new task manager to the requirements
of the TableView. It also implements the NewTaskManagerView.

To test the new task manager, you must run using the --enable-new-task-manager
switch.

[email protected]
BUG=471008, 471007

Review URL: https://codereview.chromium.org/1259703005

Cr-Commit-Position: refs/heads/master@{#343313}
20 files changed