Coverity: Fix a sizeof mismatch.

content/renderer/media/render_audiosourceprovider.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.
 
 #include "content/renderer/media/render_audiosourceprovider.h"
 
 #include "base/basictypes.h"
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "content/public/common/content_switches.h"
@@ skipping 65 matching lines @@
     vector<float*> v(audio_data.size());
     for (size_t i = 0; i < audio_data.size(); ++i)
       v[i] = audio_data[i];
 
     // TODO(crogers): figure out if we should volume scale here or in common
     // WebAudio code.  In any case we need to take care of volume.
     renderer_->Render(v, number_of_frames, 0);
   } else {
     // Provide silence if the source is not running.
     for (size_t i = 0; i < audio_data.size(); ++i)
-      memset(audio_data[i], 0, sizeof(audio_data[0]) * number_of_frames);
+      memset(audio_data[i], 0, sizeof(*audio_data[0]) * number_of_frames);
   }
 }
 
 void RenderAudioSourceProvider::Start() {
   base::AutoLock auto_lock(sink_lock_);
   if (!client_)
     default_sink_->Start();
   is_running_ = true;
 }
 
@@ skipping 40 matching lines @@
 
   if (client_) {
     // Inform WebKit about the audio stream format.
     client_->setFormat(channels_, sample_rate_);
   }
 
   is_initialized_ = true;
 }
 
 RenderAudioSourceProvider::~RenderAudioSourceProvider() {}