cashew: reset local counter on plan transition

src/device.h

Index: src/device.h
diff --git a/src/device.h b/src/device.h
index 79552344a6f17159f89cff84b799291139cc52aa..4bf287aece3e3c2f667746722ce15ecd3595bba4 100644
--- a/src/device.h
+++ b/src/device.h
@@ -64,6 +64,12 @@ class Device {
     // is the byte counter running?
     virtual bool ByteCounterRunning() const = 0;
 
+    // reset byte counter to an arbitrary baseline value
+    // counter will continue to run and increment relative to new baseline
+    // there must be an existing byte counter
+    // |parent_| must already have received at least one update

[Eric Shienbrood, 2011/02/10 18:47:00]

parent_ is in the implementation class, so it's kind of weird to refer to it
here. Probably better to say "Parent service must already have received one
update"

[Vince Laviano, 2011/02/10 22:29:19]

Done.

+    virtual void ResetByteCounter(uint64 rx_bytes, uint64 tx_bytes) = 0;
+
     // factory
     static Device* NewDevice(Service * const parent,
                              DBus::Connection& connection,  // NOLINT