Fix alarms_api_unittest.cc on GCC 4.6.3 linux 64 with -Werror=uninitialized:

chrome/browser/extensions/api/alarms/alarms_api_unittest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // This file tests the chrome.alarms extension API.
 
 #include "base/test/mock_time_provider.h"
 #include "base/values.h"
 #include "chrome/browser/extensions/api/alarms/alarm_manager.h"
 #include "chrome/browser/extensions/api/alarms/alarms_api.h"
@@ skipping 259 matching lines @@
 }
 
 TEST_F(ExtensionAlarmsTest, CreateDelayBelowMinimum) {
   // Create an alarm with delay below the minimum accepted value.
   CreateAlarm("[\"negative\", {\"delayInMinutes\": -0.2}]");
   IPC::TestSink& sink = static_cast<content::MockRenderProcessHost*>(
       contents_->GetRenderViewHost()->GetProcess())->sink();
   const IPC::Message* warning = sink.GetUniqueMessageMatching(
       ExtensionMsg_AddMessageToConsole::ID);
   ASSERT_TRUE(warning);
-  content::ConsoleMessageLevel level;
+  content::ConsoleMessageLevel level = content::CONSOLE_MESSAGE_LEVEL_TIP;
   std::string message;
   ExtensionMsg_AddMessageToConsole::Read(warning, &level, &message);
   EXPECT_EQ(content::CONSOLE_MESSAGE_LEVEL_WARNING, level);
   EXPECT_THAT(message, testing::HasSubstr("delay is less than minimum of 1"));
 }
 
 TEST_F(ExtensionAlarmsTest, Get) {
   current_time_ = base::Time::FromDoubleT(4);
 
   // Create 2 alarms, and make sure we can query them.
@@ skipping 224 matching lines @@
   EXPECT_TRUE(alarm_manager_->timer_.IsRunning());
   MessageLoop::current()->Run();
   EXPECT_FALSE(alarm_manager_->timer_.IsRunning());
   CreateAlarm("[\"bb\", {\"delayInMinutes\": 10}]");
   EXPECT_TRUE(alarm_manager_->timer_.IsRunning());
   alarm_manager_->RemoveAllAlarms(extension_->id());
   EXPECT_FALSE(alarm_manager_->timer_.IsRunning());
 }
 
 }  // namespace extensions