Apply varying packing rule.

gpu/command_buffer/service/context_group.cc

Index: gpu/command_buffer/service/context_group.cc
diff --git a/gpu/command_buffer/service/context_group.cc b/gpu/command_buffer/service/context_group.cc
index 90932fbdddc43cf68e849c8c37d3fa1ce00e347d..ac3f31874d6d2a01333841bbda92c14d145b69c9 100644
--- a/gpu/command_buffer/service/context_group.cc
+++ b/gpu/command_buffer/service/context_group.cc
@@ -128,7 +128,6 @@ bool ContextGroup::Initialize(
   renderbuffer_manager_.reset(new RenderbufferManager(
       memory_tracker_.get(), max_renderbuffer_size, max_samples));
   shader_manager_.reset(new ShaderManager());
-  program_manager_.reset(new ProgramManager(program_cache_));
 
   // Lookup GL things we need to know.
   const GLint kGLES2RequiredMinimumVertexAttribs = 8u;
@@ -235,6 +234,9 @@ bool ContextGroup::Initialize(
                 max_vertex_uniform_vectors_);
   }
 
+  program_manager_.reset(new ProgramManager(
+      program_cache_, max_varying_vectors_));
+
   if (!texture_manager_->Initialize()) {
     LOG(ERROR) << "Context::Group::Initialize failed because texture manager "
                << "failed to initialize.";