Fix crash caused by concurrent access to framebuffer_combo_complete_map_.

components/view_manager/gles2/command_buffer_local.cc

Index: components/view_manager/gles2/command_buffer_local.cc
diff --git a/components/view_manager/gles2/command_buffer_local.cc b/components/view_manager/gles2/command_buffer_local.cc
index ec6b2fc242d7cd30fdbf564cf58429663e23e676..b3699253d788dc48e2f325d30e1a102db05cf326 100644
--- a/components/view_manager/gles2/command_buffer_local.cc
+++ b/components/view_manager/gles2/command_buffer_local.cc
@@ -76,8 +76,9 @@ bool CommandBufferLocal::Initialize() {
   scoped_refptr<gpu::gles2::ContextGroup> context_group =
       new gpu::gles2::ContextGroup(
           gpu_state_->mailbox_manager(), new gles2::GpuMemoryTracker,
-          new gpu::gles2::ShaderTranslatorCache, nullptr, nullptr, nullptr,
-          bind_generates_resource);
+          new gpu::gles2::ShaderTranslatorCache,
+          new gpu::gles2::FramebufferCompletenessCache, nullptr, nullptr,
+          nullptr, bind_generates_resource);
 
   command_buffer_.reset(
       new gpu::CommandBufferService(context_group->transfer_buffer_manager()));