Introduce a client minimum picture pool size

remoting/client/plugin/pepper_video_renderer_3d.cc

Index: remoting/client/plugin/pepper_video_renderer_3d.cc
diff --git a/remoting/client/plugin/pepper_video_renderer_3d.cc b/remoting/client/plugin/pepper_video_renderer_3d.cc
index 4aec10f337fbfe81d21bd0c7a9f506534c317fb3..7aaede1625f33e447225fecdd6d0e706804b45f3 100644
--- a/remoting/client/plugin/pepper_video_renderer_3d.cc
+++ b/remoting/client/plugin/pepper_video_renderer_3d.cc
@@ -10,6 +10,7 @@
 #include "base/stl_util.h"
 #include "ppapi/c/pp_codecs.h"
 #include "ppapi/c/ppb_opengles2.h"
+#include "ppapi/c/ppb_video_decoder.h"
 #include "ppapi/cpp/instance.h"
 #include "ppapi/lib/gl/include/GLES2/gl2.h"
 #include "ppapi/lib/gl/include/GLES2/gl2ext.h"
@@ -18,6 +19,10 @@
 
 namespace remoting {
 
+// The implementation here requires this minimum number of pictures from the
+// video decoder interface to work.
+const uint32_t kMinimumPictureCount = 3;
+
 class PepperVideoRenderer3D::PendingPacket {
  public:
   PendingPacket(scoped_ptr<VideoPacket> packet, const base::Closure& done)
@@ -170,8 +175,13 @@ void PepperVideoRenderer3D::OnSessionConfig(
     default:
       NOTREACHED();
   }
+
+  bool supports_video_decoder_1_1 =
+      pp::Module::Get()->GetBrowserInterface(
+          PPB_VIDEODECODER_INTERFACE_1_1) != NULL;
   int32_t result = video_decoder_.Initialize(
       graphics_, video_profile, PP_HARDWAREACCELERATION_WITHFALLBACK,
+      supports_video_decoder_1_1 ? kMinimumPictureCount : 0,
       callback_factory_.NewCallback(&PepperVideoRenderer3D::OnInitialized));
   CHECK_EQ(result, PP_OK_COMPLETIONPENDING)
       << "video_decoder_.Initialize() returned " << result;