Move a bunch of code in content\renderer to the content namespace.

content/renderer/media/pepper_platform_video_decoder_impl.cc

Index: content/renderer/media/pepper_platform_video_decoder_impl.cc
===================================================================
--- content/renderer/media/pepper_platform_video_decoder_impl.cc	(revision 163007)
+++ content/renderer/media/pepper_platform_video_decoder_impl.cc	(working copy)
@@ -4,8 +4,6 @@
 
 #include "content/renderer/media/pepper_platform_video_decoder_impl.h"
 
-#include <vector>
-
 #include "base/bind.h"
 #include "base/logging.h"
 #include "content/common/child_process.h"
@@ -14,6 +12,8 @@
 
 using media::BitstreamBuffer;
 
+namespace content {
+
 PlatformVideoDecoderImpl::PlatformVideoDecoderImpl(
     VideoDecodeAccelerator::Client* client,
     int32 command_buffer_route_id)
@@ -35,7 +35,7 @@
   // it is okay to immediately send IPC messages through the returned channel.
   GpuChannelHost* channel =
       render_thread->EstablishGpuChannelSync(
-          content::CAUSE_FOR_GPU_LAUNCH_VIDEODECODEACCELERATOR_INITIALIZE);
+          CAUSE_FOR_GPU_LAUNCH_VIDEODECODEACCELERATOR_INITIALIZE);
 
   if (!channel)
     return false;
@@ -126,3 +126,5 @@
   DCHECK(RenderThreadImpl::current());
   client_->NotifyResetDone();
 }
+
+}  // namespace content