Update .gitignore to exclude generated files on Windows, as well as W…

…indows-only DEPS inclusions.

Is this safe, given the vcproj files that are in the repository?  I believe so.  The gitignore documentation states:

  "Note that all the gitignore files really
  concern only files that are not already
  tracked by git; in order to ignore
  uncommitted changes in already tracked
  files, please refer to the git update-index
  --assume-unchanged documentation."

TEST=ran "git status" on Windows, saw no generated files
BUG=none

Review URL: http://codereview.chromium.org/219004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@26978 0039d316-1c4b-4281-b951-d872f2087c98

.gitignore

@@ -1,9 +1,12 @@
 *.mk
 *.ncb
 *.pyc
+*.rules
 *.scons
+*.sln
 *.suo
 *.user
+*.vcproj
 *.xcodeproj
 /Makefile
 /breakpad/src/
@@ -22,6 +25,7 @@
 /chrome/test/data/osdd
 /chrome/test/data/plugin
 /chrome/test/data/workers/LayoutTests
+/chrome/tools/memory
 /chrome/tools/test/reference_build
 /data
 /googleurl
@@ -34,14 +38,18 @@
 /testserver.log
 /third_party/GTM
 /third_party/WebKit
+/third_party/cygwin
 /third_party/ffmpeg/binaries
 /third_party/forge
 /third_party/googlemac
 /third_party/hunspell
 /third_party/icu
 /third_party/personalization
 /third_party/pdfsqueeze
+/third_party/platformsdk_win2008_6_1
 /third_party/protobuf2
+/third_party/pthreads-win32
+/third_party/python_24
 /third_party/skia
 /third_party/tcmalloc/tcmalloc
 /third_party/xdg-utils