EDK: Remove mojo::platform::MessageLoopForIO and add PlatformHandleWatcher.

EDK: Remove mojo::platform::MessageLoopForIO and add PlatformHandleWatcher.

Instead, factories for "MessageLoopForIOs" should produce a MessageLoop
and (a pointer to) a PlatformHandleWatcher (which may be implemented by
the same object).

This is so when I make a factory for "I/O threads", it'll produce a
"Thread" object, a TaskRunner, and a PlatformHandleWatcher.

R=vardhan@google.com

Committed: https://chromium.googlesource.com/external/mojo/+/807d8ce0928fc1a49dd58c899aa5f6e1b6497073

[vardhan, 2015-12-09 00:18:27]

lgtm

https://codereview.chromium.org/1507903006/diff/1/mojo/edk/base_edk/test_mess...
File mojo/edk/base_edk/test_message_loops_unittest.cc (right):

https://codereview.chromium.org/1507903006/diff/1/mojo/edk/base_edk/test_mess...
mojo/edk/base_edk/test_message_loops_unittest.cc:34: // TODO(vtl): Also test the
watcher.
:P

[viettrungluu, 2015-12-09 00:30:34]

Description was changed from

==========
EDK: Remove mojo::platform::MessageLoopForIO and add PlatformHandleWatcher.

Instead, factories for "MessageLoopForIOs" should produce a MessageLoop
and (a pointer to) a PlatformHandleWatcher (which may be implemented by
the same object).

This is so when I make a factory for "I/O threads", it'll produce a
"Thread" object, a TaskRunner, and a PlatformHandleWatcher.

R=vardhan@google.com
==========

to

==========
EDK: Remove mojo::platform::MessageLoopForIO and add PlatformHandleWatcher.

Instead, factories for "MessageLoopForIOs" should produce a MessageLoop
and (a pointer to) a PlatformHandleWatcher (which may be implemented by
the same object).

This is so when I make a factory for "I/O threads", it'll produce a
"Thread" object, a TaskRunner, and a PlatformHandleWatcher.

R=vardhan@google.com

Committed:
https://chromium.googlesource.com/external/mojo/+/807d8ce0928fc1a49dd58c899aa...
==========

[viettrungluu, 2015-12-09 00:30:35]

Committed patchset #1 (id:1) manually as
807d8ce0928fc1a49dd58c899aa5f6e1b6497073 (presubmit successful).