[Android] Cache injected Java objects' methods info on renderer side

[Android] Cache injected Java objects' methods info on renderer side

Every invocation of Java method via an interface JS wrapper injected by Java bridge
is preceded by a call to GetNamedProperty. As method presence can't change
during Java object's lifetime, we should cache it on the renderer side, as every
IPC call to the browser side is super-expensive.

This optimization improves Cordova's "exec" benchmark speed by astonishing 60%, as
we shave off half of the IPC calls.

BUG=355644
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=282345

[Torne, 2014-07-10 10:56:04]

lgtm

[mnaganov (inactive), 2014-07-10 11:02:29]

The CQ bit was checked by mnaganov@chromium.org

[commit-bot: I haz the power, 2014-07-10 11:03:35]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/mnaganov@chromium.org/381683002/1

[commit-bot: I haz the power, 2014-07-10 15:11:55]

FYI, CQ is re-trying this CL (attempt #1).
The failing builders are:
  android_dbg_triggered_tests on tryserver.chromium
(http://build.chromium.org/p/tryserver.chromium/builders/android_dbg_triggered...)

[commit-bot: I haz the power, 2014-07-10 16:22:14]

Change committed as 282345