Add Windows Flash hw video decode trial.

This is to support the Windows rollout of the feature.

The distribution on different channels will be controlled from the
server. Initially we will target 100% on canary/dev, 50% on beta and
starting slowly (say from 1%) on stable but this will be gradual and
is subject to approval.

Also remove low latency audio trail which has expired a long time ago.
(It also is hard wired to enabled in all Flash binaries.)

BUG=chromium:335836
TEST=Verified Flash flags are properly passed on Link.

Review URL: https://codereview.chromium.org/141753006

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@246446 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 7 insertions, 3 deletions

diff --git a/content/browser/ppapi_plugin_process_host.cc b/content/browser/ppapi_plugin_process_host.cc
index 7e17d46..953f84c 100644
--- a/content/browser/ppapi_plugin_process_host.cc
+++ b/content/browser/ppapi_plugin_process_host.cc
@@ -307,11 +307,15 @@ bool PpapiPluginProcessHost::Init(const PepperPluginInfo& info) {
     // TODO(vtl): Stop passing flash args in the command line, or windows is
     // going to explode.
     std::string field_trial =
-        base::FieldTrialList::FindFullName(kLowLatencyFlashAudioFieldTrialName);
+        base::FieldTrialList::FindFullName(kFlashHwVideoDecodeFieldTrialName);
     std::string existing_args =
         browser_command_line.GetSwitchValueASCII(switches::kPpapiFlashArgs);
-    if (field_trial == kLowLatencyFlashAudioFieldTrialEnabledName)
-      existing_args.append(" enable_low_latency_audio=1");
+    if (field_trial == kFlashHwVideoDecodeFieldTrialEnabledName) {
+      // Arguments passed to Flash are comma delimited.
+      if (!existing_args.empty())
+        existing_args.append(",");
+      existing_args.append("enable_hw_video_decode=1");
+    }
     cmd_line->AppendSwitchASCII(switches::kPpapiFlashArgs, existing_args);
   }