Encrypted Media: Check WebKit::WebRuntimeFeatures::isEncryptedMediaEnabled() in WebMediaPlayerImpl.

Check WebKit::WebRuntimeFeatures::isEncryptedMediaEnabled() instead of chromium switch because in LayoutTest chromium switch is not used.

BUG=163785
TEST=LayoutTest


Review URL: https://chromiumcodereview.appspot.com/11434076

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@171039 0039d316-1c4b-4281-b951-d872f2087c98

webkit/media/webmediaplayer_impl.cc

@@ -10,7 +10,6 @@
 
 #include "base/bind.h"
 #include "base/callback.h"
-#include "base/command_line.h"
 #include "base/message_loop_proxy.h"
 #include "base/metrics/histogram.h"
 #include "base/string_number_conversions.h"
@@ -20,12 +19,12 @@
 #include "media/base/filter_collection.h"
 #include "media/base/limits.h"
 #include "media/base/media_log.h"
-#include "media/base/media_switches.h"
 #include "media/base/pipeline.h"
 #include "media/base/video_frame.h"
 #include "media/filters/audio_renderer_impl.h"
 #include "media/filters/chunk_demuxer.h"
 #include "media/filters/video_renderer_base.h"
+#include "third_party/WebKit/Source/WebKit/chromium/public/WebRuntimeFeatures.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebVideoFrame.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebView.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebRect.h"
@@ -187,8 +186,7 @@ WebMediaPlayerImpl::WebMediaPlayerImpl(
   filter_collection_->AddAudioRenderer(
       new media::AudioRendererImpl(new media::NullAudioSink()));
 
-  const CommandLine* cmd_line = CommandLine::ForCurrentProcess();
-  if (cmd_line->HasSwitch(switches::kEnableEncryptedMedia)) {
+  if (WebKit::WebRuntimeFeatures::isEncryptedMediaEnabled()) {
     decryptor_.reset(new ProxyDecryptor(message_loop_factory_->GetMessageLoop(
         media::MessageLoopFactory::kPipeline), proxy_.get(), client, frame));
   }