Roll Fuchsia SDK from 477c4eb66fb4 to cd7a0e380f6b

Fix Netstack interface churn.

The AutoRoll server is located here: https://autoroll.skia.org/r/fuchsia-sdk-chromium-autoroll

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

If the roll is causing failures, please contact the current sheriff, who should
be CC'd on the roll, and stop the roller if necessary.


CQ_INCLUDE_TRYBOTS=luci.chromium.try:fuchsia_arm64_cast_audio;luci.chromium.try:fuchsia_x64_cast_audio
TBR=cr-fuchsia+bot@chromium.org
TBR=mmenke@chromium.org

Change-Id: I0981c684165556a55715a55e9225f04ab0685d78
Reviewed-on: https://chromium-review.googlesource.com/c/1294208
Commit-Queue: Kevin Marshall <kmarshall@chromium.org>
Reviewed-by: Kevin Marshall <kmarshall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#601666}

build/fuchsia/linux.sdk.sha1

-477c4eb66fb4440b1ee6c8e77fa8f629f188be8b
+cd7a0e380f6b4666605b2c91947f67a077e25b5c
\ No newline at end of file

build/fuchsia/mac.sdk.sha1

-ea7c7761e884cf21cd0168a2aed4e2871611ef2f
+d5ae9fb9b68b0860313ca7c520fd1cdbf3a68df6
\ No newline at end of file

net/base/network_change_notifier_fuchsia_unittest.cc

@@ -167,6 +167,7 @@ class FakeNetstack : public fuchsia::netstack::Netstack {
       ::fidl::VectorPtr<::fuchsia::netstack::NetAddress> servers) override {}
   void AddEthernetDevice(
       ::fidl::StringPtr topological_path,
+      fuchsia::netstack::InterfaceConfig interfaceConfig,
       ::fidl::InterfaceHandle<::zircon::ethernet::Device> device) override {}
   void StartRouteTableTransaction(
       ::fidl::InterfaceRequest<::fuchsia::netstack::RouteTableTransaction>