Move ContentVideoCaptureDeviceCore from src/content to src/media

media/capture/feedback_signal_accumulator.cc

Index: media/capture/feedback_signal_accumulator.cc
diff --git a/content/browser/media/capture/feedback_signal_accumulator.cc b/media/capture/feedback_signal_accumulator.cc
similarity index 93%
rename from content/browser/media/capture/feedback_signal_accumulator.cc
rename to media/capture/feedback_signal_accumulator.cc
index 43d6d833c71dcdc37038cba96f11f377aa3f8c33..0b073f83fa4831f798a8f73edea34c4fd36920f1 100644
--- a/content/browser/media/capture/feedback_signal_accumulator.cc
+++ b/media/capture/feedback_signal_accumulator.cc
@@ -2,12 +2,12 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "content/browser/media/capture/feedback_signal_accumulator.h"
+#include "media/capture/feedback_signal_accumulator.h"
 
 #include <algorithm>
 #include <cmath>
 
-namespace content {
+namespace media {
 
 FeedbackSignalAccumulator::FeedbackSignalAccumulator(base::TimeDelta half_life)
     : half_life_(half_life) {
@@ -53,4 +53,4 @@ bool FeedbackSignalAccumulator::Update(double value,
   return true;
 }
 
-}  // namespace content
+}  // namespace media