Change install deps android to always install OpenJDK 7.

Change install deps android to always install OpenJDK 7.

L bots need OpenJDK 7 and OpenJDK 7 works when building with older SDK's.
Also, this removes the awkward way we had to install Oracle's JDK.

BUG=353155
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=272456

[Yaron, 2014-05-22 17:22:26]

lgtm

I think there are several build instructions that still mention the old jdk.
Please check/update internal and external instructions.

[navabi, 2014-05-22 21:26:58]

On 2014/05/22 17:22:26, Yaron wrote:
> lgtm
> 
> I think there are several build instructions that still mention the old jdk.
> Please check/update internal and external instructions.

This was the only place I was able to find mention of the old jdk:
https://sites.google.com/a/google.com/clank/engineering/noogler-guide/04-buil...

I removed the section about installing Oracle's Java 6.

[navabi, 2014-05-22 21:27:06]

The CQ bit was checked by navabi@google.com

[commit-bot: I haz the power, 2014-05-22 21:28:14]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/navabi@google.com/294093006/1

[commit-bot: I haz the power, 2014-05-23 00:44:28]

FYI, CQ is re-trying this CL (attempt #1).
Please consider checking whether the failures are real,
and report flakes to chrome-troopers@google.com.
The failing builders are:
  mac_chromium_rel on tryserver.chromium
(http://build.chromium.org/p/tryserver.chromium/builders/mac_chromium_rel/buil...)

[commit-bot: I haz the power, 2014-05-23 09:42:41]

Change committed as 272456