diff -up chromium-66.0.3359.117/gpu/ipc/common/mailbox_struct_traits.h.gcc5-r3 chromium-66.0.3359.117/gpu/ipc/common/mailbox_struct_traits.h
--- chromium-66.0.3359.117/gpu/ipc/common/mailbox_struct_traits.h.gcc5-r3	2018-04-17 21:04:33.000000000 -0400
+++ chromium-66.0.3359.117/gpu/ipc/common/mailbox_struct_traits.h	2018-04-18 12:12:40.065663210 -0400
@@ -15,7 +15,7 @@ namespace mojo {
 template <>
 struct StructTraits<gpu::mojom::MailboxDataView, gpu::Mailbox> {
   static base::span<const int8_t> name(const gpu::Mailbox& mailbox) {
-    return mailbox.name;
+    return base::make_span(mailbox.name);
   }
   static bool Read(gpu::mojom::MailboxDataView data, gpu::Mailbox* out);
 };
diff -up chromium-66.0.3359.117/services/viz/public/cpp/compositing/filter_operation_struct_traits.h.gcc5-r3 chromium-66.0.3359.117/services/viz/public/cpp/compositing/filter_operation_struct_traits.h
diff -up chromium-66.0.3359.117/services/viz/public/cpp/compositing/quads_struct_traits.h.gcc5-r3 chromium-66.0.3359.117/services/viz/public/cpp/compositing/quads_struct_traits.h
--- chromium-66.0.3359.117/services/viz/public/cpp/compositing/quads_struct_traits.h.gcc5-r3	2018-04-17 21:04:43.000000000 -0400
+++ chromium-66.0.3359.117/services/viz/public/cpp/compositing/quads_struct_traits.h	2018-04-18 12:12:40.067663160 -0400
@@ -308,7 +308,7 @@ struct StructTraits<viz::mojom::TextureQ
   static base::span<const float> vertex_opacity(const viz::DrawQuad& input) {
     const viz::TextureDrawQuad* quad =
         viz::TextureDrawQuad::MaterialCast(&input);
-    return quad->vertex_opacity;
+    return base::make_span(quad->vertex_opacity);
   }
 
   static bool y_flipped(const viz::DrawQuad& input) {
diff -up chromium-66.0.3359.117/third_party/WebKit/Source/platform/wtf/typed_arrays/ArrayBufferContents.h.gcc5-r3 chromium-66.0.3359.117/third_party/WebKit/Source/platform/wtf/typed_arrays/ArrayBufferContents.h
diff -up chromium-66.0.3359.117/third_party/webrtc/modules/audio_processing/aec3/aec_state.cc.gcc5-r3 chromium-66.0.3359.117/third_party/webrtc/modules/audio_processing/aec3/aec_state.cc
--- chromium-66.0.3359.117/third_party/webrtc/modules/audio_processing/aec3/aec_state.cc.gcc5-r3	2018-04-17 21:06:20.000000000 -0400
+++ chromium-66.0.3359.117/third_party/webrtc/modules/audio_processing/aec3/aec_state.cc	2018-04-18 12:12:40.068663134 -0400
@@ -10,7 +10,7 @@
 
 #include "modules/audio_processing/aec3/aec_state.h"
 
-#include <math.h>
+#include <cmath>
 
 #include <numeric>
 #include <vector>