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This change moves Device*EventPump classes and appropriate unit tests to
third_party/blink/renderer/modules/device_orientation. Their instances
are now created in relevant Device*Dispatcher methods with a LocalFrame*
passed to be used for Mojo interface creation.
Some updates were required to satisfy blink dependencies limitations
and for consistency:
- base::RepeatingTimer was replaced by TaskRunnerTimer which has to be
initialized with a base::SingleThreadTaskRunner, so the constructors
were extended with a new parameter;
- base::Time -> WTF::Time;
- base::BindOnce -> WTF::Bind, base::Unretained -> WTF::Unretained;
- device::mojom:: -> device::mojom::blink::;
- in the unit tests, device::mojom::SensorProviderPtrInfo is wrapped
into device::mojom::blink::SensorProviderPtr since FakeSensorProvider
implements device::mojom::SensorProvider

Bug: 850997
Change-Id: I440b9379f50ab42fc50b9d92490c2615ef8c3cc9
Reviewed-on: https://chromium-review.googlesource.com/1099492
Commit-Queue: Oksana Zhuravlova <oksamyt@chromium.org>
Reviewed-by: Tim Volodine <timvolodine@chromium.org>
Reviewed-by: Reilly Grant <reillyg@chromium.org>
Reviewed-by: Kentaro Hara <haraken@chromium.org>
Cr-Commit-Position: refs/heads/master@{#569659}