linux_aura: Fix crash when dragging NTP icons.

ui/base/dragdrop/os_exchange_data_provider_aurax11.cc

Index: ui/base/dragdrop/os_exchange_data_provider_aurax11.cc
diff --git a/ui/base/dragdrop/os_exchange_data_provider_aurax11.cc b/ui/base/dragdrop/os_exchange_data_provider_aurax11.cc
index 52aa7c6dce2eda003b2049ed721304a70682eea5..55841c7333d1b671f1a43bff4a1dfdacd8d89878 100644
--- a/ui/base/dragdrop/os_exchange_data_provider_aurax11.cc
+++ b/ui/base/dragdrop/os_exchange_data_provider_aurax11.cc
@@ -196,13 +196,14 @@ bool OSExchangeDataProviderAuraX11::GetURLAndTitle(
 
       std::vector<base::string16> tokens;
       size_t num_tokens = Tokenize(unparsed, ASCIIToUTF16("\n"), &tokens);
-      if (num_tokens >= 2) {
+      if (num_tokens > 0) {
+        if (num_tokens > 1)
+          *title = tokens[1];
+        else
+          *title = string16();
+
         *url = GURL(tokens[0]);
-        *title = tokens[1];
         return true;
-      } else {
-        NOTREACHED() << "Data that claimed to be a Mozilla URL has "
-                     << num_tokens << " tokens instead of 2.";
       }
     } else if (data.GetType() == atom_cache_.GetAtom(
                    Clipboard::kMimeTypeURIList)) {