When env.Replace() is getting called with a list of Nodes, use a slice to...

When env.Replace() is getting called with a list of Nodes, use a slice to
replace the old list element with the new list.  This keeps the list of
files flattened and lets the later Builder calls remove the file names
with non-linkable/non-compilable suffixes (.h) from the list.

Add .gperf to the list of non-{compil,link}able suffixes.

Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=14064

[sgk, 2009-04-20 21:17:27]

This lets the builder calls like ChromeProgram() and ChromeStaticLibrary() take
.h and .gperf out of the lists returned by rules and actions.

[Mark Mentovai, 2009-04-20 21:21:55]

Looks good.