Cleanup: Remove double semicolons.

components/gcm_driver/instance_id/instance_id_driver_unittest.cc

Index: components/gcm_driver/instance_id/instance_id_driver_unittest.cc
diff --git a/components/gcm_driver/instance_id/instance_id_driver_unittest.cc b/components/gcm_driver/instance_id/instance_id_driver_unittest.cc
index 4f700373abb7dfbaecb6a927eb26088282d92170..8997296aca9b1dad49e6749524421ca3094672b6 100644
--- a/components/gcm_driver/instance_id/instance_id_driver_unittest.cc
+++ b/components/gcm_driver/instance_id/instance_id_driver_unittest.cc
@@ -143,7 +143,7 @@ base::Time InstanceIDDriverTest::GetCreationTime(InstanceID* instance_id) {
 
 InstanceID::Result InstanceIDDriverTest::DeleteID(InstanceID* instance_id) {
   async_operation_completed_ = false;
-  result_ = InstanceID::UNKNOWN_ERROR;;
+  result_ = InstanceID::UNKNOWN_ERROR;
   instance_id->DeleteID(base::Bind(&InstanceIDDriverTest::DeleteIDCompleted,
                         base::Unretained(this)));
   WaitForAsyncOperation();
@@ -157,7 +157,7 @@ std::string InstanceIDDriverTest::GetToken(
     const std::map<std::string, std::string>& options) {
   async_operation_completed_ = false;
   token_.clear();
-  result_ = InstanceID::UNKNOWN_ERROR;;
+  result_ = InstanceID::UNKNOWN_ERROR;
   instance_id->GetToken(
       authorized_entity,
       scope,
@@ -173,7 +173,7 @@ InstanceID::Result InstanceIDDriverTest::DeleteToken(
     const std::string& authorized_entity,
     const std::string& scope) {
   async_operation_completed_ = false;
-  result_ = InstanceID::UNKNOWN_ERROR;;
+  result_ = InstanceID::UNKNOWN_ERROR;
   instance_id->DeleteToken(
       authorized_entity,
       scope,
@@ -209,7 +209,7 @@ void InstanceIDDriverTest::DeleteIDCompleted(InstanceID::Result result) {
 }
 
 void InstanceIDDriverTest::GetTokenCompleted(
-    const std::string& token, InstanceID::Result result){
+    const std::string& token, InstanceID::Result result) {
   DCHECK(!async_operation_completed_);
   async_operation_completed_ = true;
   token_ = token;
@@ -357,4 +357,4 @@ TEST_F(InstanceIDDriverTest, DeleteToken) {
             GetToken(instance_id, kAuthorizedEntity2, kScope1, options));
 }
 
-}  // instance_id
+}  // namespace instance_id