sync: Improve StatusChangeChecker debug strings

chrome/browser/sync/test/integration/sync_auth_test.cc

Index: chrome/browser/sync/test/integration/sync_auth_test.cc
diff --git a/chrome/browser/sync/test/integration/sync_auth_test.cc b/chrome/browser/sync/test/integration/sync_auth_test.cc
index a943a9463206714636cebfec476d75bc8a66c0fd..1ceb2d6749efdd8a19ccb771fea0a334788c3b5d 100644
--- a/chrome/browser/sync/test/integration/sync_auth_test.cc
+++ b/chrome/browser/sync/test/integration/sync_auth_test.cc
@@ -50,13 +50,14 @@ class TestForAuthError : public StatusChangeChecker {
   explicit TestForAuthError(ProfileSyncService* service);
   virtual ~TestForAuthError();
   virtual bool IsExitConditionSatisfied() OVERRIDE;
+  virtual std::string GetDebugMessage() const OVERRIDE;
 
  private:
   ProfileSyncService* service_;
 };
 
 TestForAuthError::TestForAuthError(ProfileSyncService* service)
-  : StatusChangeChecker("Testing for auth error"), service_(service) {}
+  : service_(service) {}
 
 TestForAuthError::~TestForAuthError() {}
 
@@ -66,6 +67,10 @@ bool TestForAuthError::IsExitConditionSatisfied() {
        GoogleServiceAuthError::NONE);
 }
 
+std::string TestForAuthError::GetDebugMessage() const {
+  return "Waiting for auth error";
+}
+
 class SyncAuthTest : public SyncTest {
  public:
   SyncAuthTest() : SyncTest(SINGLE_CLIENT), bookmark_index_(0) {}
@@ -82,7 +87,7 @@ class SyncAuthTest : public SyncTest {
 
     // Run until the bookmark is committed or an auth error is encountered.
     TestForAuthError checker_(GetClient(0)->service());
-    GetClient(0)->AwaitStatusChange(&checker_, "Attempt to trigger auth error");
+    GetClient(0)->AwaitStatusChange(&checker_);
 
     GoogleServiceAuthError oauth_error =
         GetClient(0)->service()->GetSyncTokenStatus().last_get_token_error;