Refactor ContentShell to remove ContentViewClient dependency.

Refactor ContentShell to remove ContentViewClient dependency.

The ContentViewClient was replacing the native Shell as the WebContents
delegate, which is being refactored to no longer provide this
functionality.

This moves all the dependencies into Shell (like other platforms) and
removes the need for the native shell_view.cc/h.  Now all calls are
routed through shell_android.

BUG=
TEST=


Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=147357

[Ted C, 2012-07-18 18:53:08]

@jam for content_shell.gypi and content/shell/shell changes
@joth for content/shell/android changes

[joth, 2012-07-18 19:55:30]

lgtm

[jam, 2012-07-18 20:26:21]

lgtm

[commit-bot: I haz the power, 2012-07-18 20:40:08]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/tedchoc@chromium.org/10800019/1

[commit-bot: I haz the power, 2012-07-18 21:54:03]

Try job failure for 10800019-1 (retry) on mac_rel for step "browser_tests".
It's a second try, previously, step "browser_tests" failed.
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=mac_rel&nu...

[commit-bot: I haz the power, 2012-07-18 22:59:10]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/tedchoc@chromium.org/10800019/1

[commit-bot: I haz the power, 2012-07-19 00:32:06]

Change committed as 147357