Exporting ScopedTempDir so it can be used by webkit layout tests.

webkit/support/webkit_support.cc

Index: webkit/support/webkit_support.cc
diff --git a/webkit/support/webkit_support.cc b/webkit/support/webkit_support.cc
index ae6f08a8df1f6006b86ca184c348b34632342b45..6b40477d4a0fe01fc1ed4159c48012c3f6d21b1a 100644
--- a/webkit/support/webkit_support.cc
+++ b/webkit/support/webkit_support.cc
@@ -17,6 +17,7 @@
 #include "base/message_loop.h"
 #include "base/path_service.h"
 #include "base/process_util.h"
+#include "base/scoped_temp_dir.h"
 #include "base/string_piece.h"
 #include "base/string_util.h"
 #include "base/stringprintf.h"
@@ -486,6 +487,26 @@ WebURL LocalFileToDataURL(const WebURL& fileUrl) {
   return WebURL(GURL(kDataUrlPrefix + contents_base64));
 }
 
+// A wrapper object for exporting ScopedTempDir to be used
+// by webkit layout tests.
+class ScopedTempDirectoryInternal : public ScopedTempDirectory {
+ public:
+   virtual bool CreateUniqueTempDir() {
+     return tempDirectory_.CreateUniqueTempDir();
+   }
+
+   virtual std::string path() const {
+     return tempDirectory_.path().MaybeAsASCII();

[darin (slow to review), 2011/05/23 16:29:56]

this probably isn't a big deal for developers, but this looks like it would not
work well if the temporary directory contains non-ASCII chars (can happen on
Windows).

we normally pass file paths to webkit using WebString and
webkit_glue::FilePathToWebString.

+   }
+
+ private:
+   ScopedTempDir tempDirectory_;
+};
+
+ScopedTempDirectory* CreateScopedTempDirectory() {
+  return new ScopedTempDirectoryInternal();
+}
+
 int64 GetCurrentTimeInMillisecond() {
   return base::TimeTicks::Now().ToInternalValue()
       / base::Time::kMicrosecondsPerMillisecond;