Get shared link working again.

chrome/common/temp_scaffolding_stubs.h

Index: chrome/common/temp_scaffolding_stubs.h
diff --git a/chrome/common/temp_scaffolding_stubs.h b/chrome/common/temp_scaffolding_stubs.h
index 5179ffa9486c239a0f27e0f604e215358d228ab0..987c25c5092949a09bbbb667f30494a52e3ccc14 100644
--- a/chrome/common/temp_scaffolding_stubs.h
+++ b/chrome/common/temp_scaffolding_stubs.h
@@ -494,6 +494,11 @@ class Encryptor {
   }
 };
 
+
+// spellchecker.h works on Linux, but it depends on hunspell which isn't
+// built on Mac.  Getting it to build on the Mac is apparently hard, so I'll
+// punt this to the Mac team for now.
+#if defined(OS_MACOSX)
 class SpellChecker : public base::RefCountedThreadSafe<SpellChecker> {
  public:
   typedef std::wstring Language;
@@ -518,6 +523,9 @@ class SpellChecker : public base::RefCountedThreadSafe<SpellChecker> {
     return 0;
   }
 };
+#else
+#include "chrome/browser/spellchecker.h"
+#endif
 
 class WebAppLauncher {
  public: