Fuchsia: Update SDK build from cpp to cc
Fuchsia: Update SDK build from cpp to cc

Fuchsia recently globally renamed all .cpp to .cc and some of that leaks
out into the SDK.

Change-Id: Id04c7e18cde77674dc6c1a40f9e378bb182951c8
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/1682767
Reviewed-by: Joshua Peraza <f5809a5e35ec7e1bd0e25cb0a0b68bb433cf6f17@chromium.org>
Commit-Queue: Scott Graham <e134406e1863f3b48b0795831afac5c0595efb36@chromium.org>

chromium/crashpad,chromium/crashpad,chromium/crashpad