content/browser: Move speech code into content namespace.

content/browser/speech/endpointer/energy_endpointer.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 //
 // To know more about the algorithm used and the original code which this is
 // based of, see
 // https://wiki.corp.google.com/twiki/bin/view/Main/ChromeGoogleCodeXRef
 
 #include "content/browser/speech/endpointer/energy_endpointer.h"
 
@@ skipping 23 matching lines @@
 }
 
 float GetDecibel(float value) {
   if (value > 1.0e-100)
     return 20 * log10(value);
   return -2000.0;
 }
 
 }  // namespace
 
-namespace speech {
+namespace content {
 
 // Stores threshold-crossing histories for making decisions about the speech
 // state.
 class EnergyEndpointer::HistoryRing {
  public:
   HistoryRing() : insertion_index_(0) {}
 
   // Resets the ring to |size| elements each with state |initial_state|
   void SetRing(int size, bool initial_state);
 
@@ skipping 311 matching lines @@
     if (decision_threshold_ < params_.min_decision_threshold())
       decision_threshold_ = params_.min_decision_threshold();
   }
 }
 
 EpStatus EnergyEndpointer::Status(int64* status_time)  const {
   *status_time = history_->EndTime();
   return status_;
 }
 
-}  // namespace speech
+}  // namespace content