Eliminate the 'build_ppapi_ipc_proxy_untrusted' build flag for untrusted PPAPI proxy builds.

Eliminate the 'build_ppapi_ipc_proxy_untrusted' build flag for untrusted PPAPI proxy builds. 

This CL removes our custom GYP flag and modifies the build so both the SRPC and IPC proxies are built side by side. In addition, NaClBrowser now checks the '--enable-nacl-ipc-proxy' flag to determine which IRT to load. The IPC proxy's name is of the form 'nacl_ipc_irt_*'. 

BUG=116317
TEST=builds and runs NaCl apps with --enable-nacl-ipc-proxy
TBR=bbudge@chromium.org
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=151693

[bbudge, 2012-08-14 23:45:12]

Trying to re-land this. It depends on:

http://codereview.chromium.org/10823328/

This fixes the NaCl IPC IRT build when USE_AURA is true.

[bbudge, 2012-08-14 23:47:05]

On 2012/08/14 23:45:12, bbudge1 wrote:
> Trying to re-land this. It depends on:
> 
> http://codereview.chromium.org/10823328/
> 
> This fixes the NaCl IPC IRT build when USE_AURA is true.

This patch is identical to the previous one.

[bbudge, 2012-08-14 23:50:26]

On 2012/08/14 23:47:05, bbudge1 wrote:
> On 2012/08/14 23:45:12, bbudge1 wrote:
> > Trying to re-land this. It depends on:
> > 
> > http://codereview.chromium.org/10823328/
> > 
> > This fixes the NaCl IPC IRT build when USE_AURA is true.
> 
> This patch is identical to the previous one.

I need to wait for bots to catch up before running tries.

[Brad Chen, 2012-08-17 16:49:17]

It looks as though this change has induced compile failures on the heapcheck bot
(Memory FYI waterfall). See
http://build.chromium.org/p/chromium.memory.fyi/builders/Linux%20Heapcheck/bu...
Derek and I are trying to figure out how to fix this; clues would be
appreciated.

On 2012/08/14 23:50:26, bbudge1 wrote:
> On 2012/08/14 23:47:05, bbudge1 wrote:
> > On 2012/08/14 23:45:12, bbudge1 wrote:
> > > Trying to re-land this. It depends on:
> > > 
> > > http://codereview.chromium.org/10823328/
> > > 
> > > This fixes the NaCl IPC IRT build when USE_AURA is true.
> > 
> > This patch is identical to the previous one.
> 
> I need to wait for bots to catch up before running tries.