Re-land chromeos: Add non-extension renderers to the freezer cgroup

chromeos/dbus/fake_power_manager_client.h

Index: chromeos/dbus/fake_power_manager_client.h
diff --git a/chromeos/dbus/fake_power_manager_client.h b/chromeos/dbus/fake_power_manager_client.h
index d840d513e6c07d83f94846a9f2c0ee49f1086a2c..a1b2e78e1d795cb9d1703c982caadf52c338e20f 100644
--- a/chromeos/dbus/fake_power_manager_client.h
+++ b/chromeos/dbus/fake_power_manager_client.h
@@ -38,6 +38,8 @@ class FakePowerManagerClient : public PowerManagerClient {
   virtual void AddObserver(Observer* observer) override;
   virtual void RemoveObserver(Observer* observer) override;
   virtual bool HasObserver(const Observer* observer) const override;
+  virtual void SetRenderProcessManagerDelegate(
+      base::WeakPtr<RenderProcessManagerDelegate> delegate) override;
   virtual void DecreaseScreenBrightness(bool allow_off) override;
   virtual void IncreaseScreenBrightness() override;
   virtual void SetScreenBrightnessPercent(
@@ -90,6 +92,9 @@ class FakePowerManagerClient : public PowerManagerClient {
   // Last projecting state set in SetIsProjecting().
   bool is_projecting_;
 
+  // Delegate for managing power consumption of Chrome's renderer processes.
+  base::WeakPtr<RenderProcessManagerDelegate> delegate_;
+
   DISALLOW_COPY_AND_ASSIGN(FakePowerManagerClient);
 };