Roll trace viewer deps to r1281

This fixes traces failing to import on linux, as reported in https://code.google.com/p/trace-viewer/issues/detail?id=559

TBR=dsinclair
NOTRY=True

Review URL: https://codereview.chromium.org/302773002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@273009 0039d316-1c4b-4281-b951-d872f2087c98

DEPS

@@ -100,7 +100,7 @@ deps = {
     Var("chromium_git") + "/angle/angle.git@" + Var("angle_revision"),
 
   "src/third_party/trace-viewer":
-    (Var("googlecode_url") % "trace-viewer") + "/trunk@1275",
+    (Var("googlecode_url") % "trace-viewer") + "/trunk@1281",
 
   "src/third_party/WebKit":
     Var("webkit_trunk") + "@" + Var("webkit_revision"),