Initialize PowerMonitor on_power_battery intitial value for newly created processes.

content/browser/power_monitor_message_broadcaster_unittest.cc

Index: content/browser/power_monitor_message_broadcaster_unittest.cc
diff --git a/content/browser/power_monitor_message_broadcaster_unittest.cc b/content/browser/power_monitor_message_broadcaster_unittest.cc
index 515508266cf812cf6ca10152d64f46a72fe4593f..c277e83177d9872bd47d0141007af0fbb84626d6 100644
--- a/content/browser/power_monitor_message_broadcaster_unittest.cc
+++ b/content/browser/power_monitor_message_broadcaster_unittest.cc
@@ -69,6 +69,10 @@ TEST_F(PowerMonitorMessageBroadcasterTest, PowerMessageBroadcast) {
   PowerMonitorMessageSender sender;
   PowerMonitorMessageBroadcaster broadcaster(&sender);
 
+  // Calling Init should invoke a power state change.
+  broadcaster.Init();
+  EXPECT_EQ(sender.power_state_changes(), 1);
+
   // Sending resume when not suspended should have no effect.
   source()->GenerateResumeEvent();
   EXPECT_EQ(sender.resumes(), 0);
@@ -91,19 +95,19 @@ TEST_F(PowerMonitorMessageBroadcasterTest, PowerMessageBroadcast) {
 
   // Pretend the device has gone on battery power
   source()->GeneratePowerStateEvent(true);
-  EXPECT_EQ(sender.power_state_changes(), 1);
+  EXPECT_EQ(sender.power_state_changes(), 2);
 
   // Repeated indications the device is on battery power should be suppressed.
   source()->GeneratePowerStateEvent(true);
-  EXPECT_EQ(sender.power_state_changes(), 1);
+  EXPECT_EQ(sender.power_state_changes(), 2);
 
   // Pretend the device has gone off battery power
   source()->GeneratePowerStateEvent(false);
-  EXPECT_EQ(sender.power_state_changes(), 2);
+  EXPECT_EQ(sender.power_state_changes(), 3);
 
   // Repeated indications the device is off battery power should be suppressed.
   source()->GeneratePowerStateEvent(false);
-  EXPECT_EQ(sender.power_state_changes(), 2);
+  EXPECT_EQ(sender.power_state_changes(), 3);
 }
 
 }  // namespace base