Resubmit r7826 after fixing breakages:...

Resubmit r7826 after fixing breakages:

Generation of net .vcproj and .sln files.

Specific changes:
* Add to MSVSProject() calls:  GUID, input_files list,
  tools list (that are common to the individual configurations).
* Add *.h files and MSVSFilter() hierarchies to input_files lists.
* Switch to using the .Remove() method for instead of by-hand
  Python to remove things from input_files lists.
* Use of precompiled header files still requires separate by-hand
  Configuration specifications.
* Remove .dat files from the input file lists when compiling.
* Extensive _Node_MSVS.py changes that set us up for deducing this
  information from parallel Debug and Release builds instead of
  configuring things by hand, basically by delaying evaluation of
  most of the strings, then introspecting on the command lines
  that will be used to generate the targets and translating
  compiler and linker options into Visual Studio settings.

The result is (again) byte-for-byte identical .vcproj files, modulo
removal of a ".\" current-directory prefix for a few RelativePath
specifications.

Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=7854

[sgk, 2009-01-10 17:53:06]

TBR based on:  1) previous approval; 2) try server result; 3) Saturday
monitoring and roll-back if it breaks again.