WebM support for new multipart VP9 string.

content/browser/renderer_host/render_process_host_impl.cc

Index: content/browser/renderer_host/render_process_host_impl.cc
diff --git a/content/browser/renderer_host/render_process_host_impl.cc b/content/browser/renderer_host/render_process_host_impl.cc
index b8817c431d67c72ed77b7f21d5cdf3f0b059971e..b1a238db5ab529c4be1d6324ca1e393f357ce979 100644
--- a/content/browser/renderer_host/render_process_host_impl.cc
+++ b/content/browser/renderer_host/render_process_host_impl.cc
@@ -1751,6 +1751,7 @@ void RenderProcessHostImpl::PropagateBrowserCommandLineToRenderer(
     switches::kEnableDistanceFieldText,
     switches::kEnableExperimentalCanvasFeatures,
     switches::kEnableExperimentalWebPlatformFeatures,
+    switches::kEnableHDROutput,
     switches::kEnableHeapProfiling,
     switches::kEnableGPUClientLogging,
     switches::kEnableGpuClientTracing,
@@ -1763,6 +1764,7 @@ void RenderProcessHostImpl::PropagateBrowserCommandLineToRenderer(
     switches::kEnableLogging,
     switches::kEnableNetworkInformation,
     switches::kEnableOverlayScrollbar,
+    switches::kEnableNewVp9CodecString,
     switches::kEnablePinch,
     switches::kEnablePluginPlaceholderTesting,
     switches::kEnablePreciseMemoryInfo,