Fix Qt OpenGL lib name on Windows and change the default qt_sdk var value on windows.

Over-the-shoulder review from robertphillips@google.com



git-svn-id: http://skia.googlecode.com/svn/trunk@5894 2bbb7eff-a529-9590-31e7-b0007b416f81

gyp/debugger.gyp

@@ -47,8 +47,8 @@
       }],
       [ 'skia_os == "win"', {
         'variables': {
-          # TODO: location of systemwide Qt on Win?
-          'qt_sdk%': 'C:/Qt/4.6.4/',
+          # This is the default location for the version of Qt current on 10/11/12
+          'qt_sdk%': 'C:/Qt/4.8.3/',
         },
         'qt_sdk': '<(qt_sdk)',
         'qt_moc%': '<(qt_sdk)/bin/moc',
@@ -61,7 +61,7 @@
         'qt_libs': [
           '<(qt_sdk)/lib/QtCore4.lib',
           '<(qt_sdk)/lib/QtGui4.lib',
-          '<(qt_sdk)/lib/QtOpenGL.lib',
+          '<(qt_sdk)/lib/QtOpenGL4.lib',
         ],
       }],
     ],