Allow multiple texture ids per picture buffer.

content/renderer/pepper/video_decoder_shim.cc

Index: content/renderer/pepper/video_decoder_shim.cc
diff --git a/content/renderer/pepper/video_decoder_shim.cc b/content/renderer/pepper/video_decoder_shim.cc
index 92ffcdb562302e3e2c69ecd9424a397c85e80001..f1d090e27a53774c44dc18d4a4d85697a47c56ec 100644
--- a/content/renderer/pepper/video_decoder_shim.cc
+++ b/content/renderer/pepper/video_decoder_shim.cc
@@ -944,10 +944,12 @@ void VideoDecoderShim::AssignPictureBuffers(
   std::vector<uint32_t> local_texture_ids(num_textures);
   gpu::gles2::GLES2Interface* gles2 = context_provider_->ContextGL();
   for (uint32_t i = 0; i < num_textures; i++) {
+    if (buffers[i].texture_ids().empty())
+      continue;

[raymes, 2016/03/31 00:09:25]

Could this case actually happen?

     local_texture_ids[i] = gles2->CreateAndConsumeTextureCHROMIUM(
         GL_TEXTURE_2D, pending_texture_mailboxes_[i].name);
     // Map the plugin texture id to the local texture id.
-    uint32_t plugin_texture_id = buffers[i].texture_id();
+    uint32_t plugin_texture_id = buffers[i].texture_ids()[0];
     texture_id_map_[plugin_texture_id] = local_texture_ids[i];
     available_textures_.insert(plugin_texture_id);
   }