Remove tabs in webkit.gyp introduced by paul on revision 18995....

webkit/webkit.gyp

Index: webkit/webkit.gyp
===================================================================
--- webkit/webkit.gyp	(revision 20141)
+++ webkit/webkit.gyp	(working copy)
@@ -752,8 +752,8 @@
         '../third_party/WebKit/WebCore/html/HTMLCanvasElement.idl',
         '../third_party/WebKit/WebCore/html/HTMLCollection.idl',
         '../third_party/WebKit/WebCore/html/HTMLDListElement.idl',
-	'../third_party/WebKit/WebCore/html/HTMLDataGridCellElement.idl',
-	'../third_party/WebKit/WebCore/html/HTMLDataGridColElement.idl',
+        '../third_party/WebKit/WebCore/html/HTMLDataGridCellElement.idl',
+        '../third_party/WebKit/WebCore/html/HTMLDataGridColElement.idl',
         '../third_party/WebKit/WebCore/html/HTMLDataGridElement.idl',
         '../third_party/WebKit/WebCore/html/HTMLDataGridRowElement.idl',
         '../third_party/WebKit/WebCore/html/HTMLDirectoryElement.idl',
@@ -2109,8 +2109,8 @@
         '../third_party/WebKit/WebCore/page/WindowFeatures.h',
         '../third_party/WebKit/WebCore/page/WorkerNavigator.cpp',
         '../third_party/WebKit/WebCore/page/WorkerNavigator.h',
-	'../third_party/WebKit/WebCore/page/XSSAuditor.cpp',
-	'../third_party/WebKit/WebCore/page/XSSAuditor.h',
+        '../third_party/WebKit/WebCore/page/XSSAuditor.cpp',
+        '../third_party/WebKit/WebCore/page/XSSAuditor.h',
         '../third_party/WebKit/WebCore/platform/animation/Animation.cpp',
         '../third_party/WebKit/WebCore/platform/animation/Animation.h',
         '../third_party/WebKit/WebCore/platform/animation/AnimationList.cpp',