Add a separate cookie for the start of a PPAPI test to help reduce test...

ppapi/tests/testing_instance.cc

Index: ppapi/tests/testing_instance.cc
===================================================================
--- ppapi/tests/testing_instance.cc	(revision 68649)
+++ ppapi/tests/testing_instance.cc	(working copy)
@@ -93,6 +93,8 @@
 }
 
 void TestingInstance::ExecuteTests(int32_t unused) {
+  SetCookie("STARTUP_COOKIE", "STARTED");
+
   // Clear the console.
   // This does: window.document.getElementById("console").innerHTML = "";
   pp::Var window = GetWindowObject();
@@ -168,7 +170,7 @@
 }
 
 void TestingInstance::SetCookie(const std::string& name,
-                             const std::string& value) {
+                                const std::string& value) {
   // window.document.cookie = "<name>=<value>; path=/"
   std::string cookie_string = name + "=" + value + "; path=/";
   pp::Var document = GetWindowObject().GetProperty("document");