Fix Chromoting under Ozone.

Fix ppapi key codes under Ozone.

Moves the native-event test from RenderWidgetHostViewAura::OnKeyEvent()
down to MakeWebKeyboardEvent() so that nativeKeyCode is correctly set.

Symptoms included incorrect characters in Chromoting, and Search key not working in non-web windows.

BUG=425156
BUG=440184
Committed: https://crrev.com/6c3cc33ee385dd026ca3e8d77032e38702f137f3
Cr-Commit-Position: refs/heads/master@{#307994}

[kpschoedel, 2014-12-10 17:02:29]

kpschoedel@chromium.org changed reviewers:
+ sadrul@chromium.org

[sadrul, 2014-12-11 15:16:48]

Can you add a test?

[kpschoedel, 2014-12-11 19:19:13]

Test without this patch shown failing here:
https://codereview.chromium.org/791413002/

[sadrul, 2014-12-11 19:20:57]

Thanks! LGTM

https://codereview.chromium.org/789153004/diff/40001/content/browser/renderer...
File content/browser/renderer_host/render_widget_host_view_aura_unittest.cc
(right):

https://codereview.chromium.org/789153004/diff/40001/content/browser/renderer...
content/browser/renderer_host/render_widget_host_view_aura_unittest.cc:146:
scoped_ptr<NativeWebKeyboardEvent> last_event_;
DISALLOW_COPY_...

[kpschoedel, 2014-12-11 21:28:13]

The CQ bit was checked by kpschoedel@chromium.org

[commit-bot: I haz the power, 2014-12-11 23:12:27]

Committed patchset #4 (id:60001)

[commit-bot: I haz the power, 2014-12-11 23:13:14]

Patchset 4 (id:??) landed as
https://crrev.com/6c3cc33ee385dd026ca3e8d77032e38702f137f3
Cr-Commit-Position: refs/heads/master@{#307994}