fix clang

BUG=none
TEST=none
Review URL: http://codereview.chromium.org/7062011

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@86761 0039d316-1c4b-4281-b951-d872f2087c98

content/renderer/media/video_capture_impl_manager.cc

@@ -113,3 +113,6 @@ VideoCaptureImplManager::Device::Device(
     : vc(device) {
   clients.push_front(handler);
 }
+
+VideoCaptureImplManager::Device::~Device() {}
+

content/renderer/media/video_capture_impl_manager.h

@@ -46,6 +46,7 @@ class VideoCaptureImplManager {
     Device();
     Device(VideoCaptureImpl* device,
            media::VideoCapture::EventHandler* handler);
+    ~Device();
 
     VideoCaptureImpl* vc;
     std::list<media::VideoCapture::EventHandler*> clients;