List message decryption failures on chrome://gcm-internals

components/gcm_driver/fake_gcm_driver.cc

Index: components/gcm_driver/fake_gcm_driver.cc
diff --git a/components/gcm_driver/fake_gcm_driver.cc b/components/gcm_driver/fake_gcm_driver.cc
index ae9c8ba1ff375ea79960b0288c1abe7160e4125d..9c68c97d8677b7b59cdeba3e273f29e2096f58b5 100644
--- a/components/gcm_driver/fake_gcm_driver.cc
+++ b/components/gcm_driver/fake_gcm_driver.cc
@@ -74,6 +74,11 @@ void FakeGCMDriver::SendImpl(const std::string& app_id,
                              const OutgoingMessage& message) {
 }
 
+void FakeGCMDriver::RecordDecryptionFailure(
+    const std::string& app_id,
+    GCMEncryptionProvider::DecryptionFailure reason) {
+}
+
 void FakeGCMDriver::SetAccountTokens(
     const std::vector<GCMClient::AccountTokenInfo>& account_tokens) {
 }