device_orientation::DispatcherHost: one Provider observer per render_view_id.
Refactor device_orientation::DispatcherHost to create a 1-to-1 relationship
between a RenderView and an observer of the Provider. The intention is
to remove the need for logic from DispatcherHost, and in effect have the
RenderView observe the Provider.
BUG=44654
TEST=browser_tests --gtest_filter=DeviceOrientationBrowserTest.BasicTest
Review URL: http://codereview.chromium.org/3152043
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@57176 0039d316-1c4b-4281-b951-d872f2087c98
3 files changed
