Revert 273188 "Revert 271207 "Changed android toolchain to use G..."

Revert 273188 "Revert 271207 "Changed android toolchain to use G..."

In the time between upgrading from GCC 4.6 to 4.8 the codebase changed
to trigger a compiler bug that exists in 4.6 but not in 4.8. We now
have two options: fix our code for 4.6 or fix WebRTC. We need to
upgrade to 4.8 either way. As the WebRTC team seems to have a
potential fix for running on 4.8, we will go up to 4.8 again.

> Revert 271207 "Changed android toolchain to use GCC 4.8"
> 
> > Changed android toolchain to use GCC 4.8
> > 
> > BUG=359106
> > 
> > Review URL: https://codereview.chromium.org/218633007
> 
> TBR=fdegans@chromium.org
> 
> Review URL: https://codereview.chromium.org/303493006

TBR=henrika@google.com

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=273247

[Michael van Ouwerkerk, 2014-05-28 15:33:02]

Committed patchset #1 manually as r273247.

[Andrew Hayden (chromium.org), 2014-05-28 15:57:08]

Bug: https://code.google.com/p/chromium/issues/detail?id=378349