Changing non-const reference arguments to pointers, ACM

Part of refactoring of ACM, and recent lint-warnings.
This CL changes non-const references in the ACM API to pointers.

BUG=issue1372

Committed: https://code.google.com/p/webrtc/source/detail?r=3543

Review URL: https://webrtc-codereview.appspot.com/1103012

git-svn-id: http://webrtc.googlecode.com/svn/trunk@3555 4adac7df-926f-26a2-2b94-8c16560cd09d
diff --git a/webrtc/modules/utility/source/coder.cc b/webrtc/modules/utility/source/coder.cc
index a610daa..f023d22 100644
--- a/webrtc/modules/utility/source/coder.cc
+++ b/webrtc/modules/utility/source/coder.cc
@@ -76,14 +76,13 @@
             return -1;
         }
     }
-    return _acm->PlayoutData10Ms((WebRtc_UWord16)sampFreqHz,
-				 (AudioFrame&)decodedAudio);
+    return _acm->PlayoutData10Ms((WebRtc_UWord16)sampFreqHz, &decodedAudio);
 }
 
 WebRtc_Word32 AudioCoder::PlayoutData(AudioFrame& decodedAudio,
 				      WebRtc_UWord16& sampFreqHz)
 {
-    return _acm->PlayoutData10Ms(sampFreqHz, (AudioFrame&)decodedAudio);
+    return _acm->PlayoutData10Ms(sampFreqHz, &decodedAudio);
 }
 
 WebRtc_Word32 AudioCoder::Encode(const AudioFrame& audio,