Reverting sdk7 landing AGAIN!!!...

build/common.gypi

Index: build/common.gypi
===================================================================
--- build/common.gypi	(revision 34357)
+++ build/common.gypi	(working copy)
@@ -905,7 +905,7 @@
           '_HAS_TR1=0',
         ],
         'msvs_system_include_dirs': [
-          '<(DEPTH)/third_party/platformsdk_win7/files/Include',
+          '<(DEPTH)/third_party/platformsdk_win2008_6_1/files/Include',
           '$(VSInstallDir)/VC/atlmfc/include',
         ],
         'msvs_cygwin_dirs': ['<(DEPTH)/third_party/cygwin'],
@@ -929,7 +929,7 @@
           'VCLibrarianTool': {
             'AdditionalOptions': '/ignore:4221',
             'AdditionalLibraryDirectories':
-              ['<(DEPTH)/third_party/platformsdk_win7/files/Lib'],
+              ['<(DEPTH)/third_party/platformsdk_win2008_6_1/files/Lib'],
           },
           'VCLinkerTool': {
             'AdditionalDependencies': [
@@ -942,7 +942,7 @@
               'dbghelp.lib',
             ],
             'AdditionalLibraryDirectories':
-              ['<(DEPTH)/third_party/platformsdk_win7/files/Lib'],
+              ['<(DEPTH)/third_party/platformsdk_win2008_6_1/files/Lib'],
             'GenerateDebugInformation': 'true',
             'MapFileName': '$(OutDir)\\$(TargetName).map',
             'ImportLibrary': '$(OutDir)\\lib\\$(TargetName).lib',