Add list of Skia trybots to run CLs against, along with existing lists of Chrome trybots

trybots_to_run/skia/compile

Index: trybots_to_run/skia/compile
===================================================================
--- trybots_to_run/skia/compile	(revision 0)
+++ trybots_to_run/skia/compile	(revision 0)
@@ -0,0 +1 @@
+Skia_ChromeOS_Alex_Compile_Debug_32 Skia_Linux_NoGPU_Compile_Debug_32 Skia_MacMiniLion_Float_Compile_Debug_32 Skia_MacMiniLion_Float_Compile_Release_64 Skia_MacMini_10_8_Float_Compile_Debug_32 Skia_MacMini_10_8_Float_Compile_Release_64 Skia_Mac_Float_Compile_Debug_32 Skia_Mac_Float_Compile_Release_64 Skia_Nexus10_4-1_Float_Compile_Debug_32 Skia_Nexus4_4-1_Float_Compile_Release_32 Skia_RazrI_4-1_Float_Compile_Debug_32 Skia_Shuttle_Ubuntu12_ATI5770_Float_Compile_Debug_32 Skia_Shuttle_Ubuntu12_ATI5770_Float_Compile_Release_64 Skia_Shuttle_Ubuntu12_NaCl_Compile_Debug Skia_Shuttle_Win7_Intel_Float_ANGLE_Compile_Debug_32 Skia_Shuttle_Win7_Intel_Float_Compile_Debug_32 Skia_Shuttle_Win7_Intel_Float_DirectWrite_Compile_Debug_32 Skia_iOS_Compile_Debug_32

[epoger, 2013/04/03 16:59:38]

patchset 3 reduces the list of compile-only bots... a smaller set, that we
believe will cover 99% of compile failures.

[rmistry, 2013/04/03 17:09:38]

Dont they have to be comma separated?

[borenet, 2013/04/03 17:10:45]

No: https://sites.google.com/site/skiadocs/developer-documentation/skia-trybots

[epoger, 2013/04/03 18:39:55]

Patchset 4 uses commas instead of spaces as delimiters, because submit_try
supports either one as of https://code.google.com/p/skia/source/detail?r=8521 !

Unless I hear complaints, I will commit at patchset 4, and update documentation
accordingly.