Add //mojo/edk/embedder:headers as a dependency for the multi-process host.

Bug: 783173
Change-Id: I2bcf961155fab34a9a58865ca17ebe28876bab10
Reviewed-on: https://chromium-review.googlesource.com/764118
Commit-Queue: Jamie Walch <jamiewalch@chromium.org>
Reviewed-by: Zijie He <zijiehe@chromium.org>
Cr-Commit-Position: refs/heads/master@{#516078}

remoting/host/BUILD.gn

@@ -744,7 +744,10 @@ if (enable_me2me_host) {
     }
 
     if (remoting_multi_process != 0) {
-      deps += [ "//mojo/edk/system" ]
+      deps += [
+        "//mojo/edk/embedder:headers",
+        "//mojo/edk/system",
+      ]
     }
   }
 

remoting/host/host_main.cc

@@ -19,7 +19,6 @@
 #include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
 #include "build/build_config.h"
-#include "mojo/edk/embedder/embedder.h"
 #include "remoting/base/breakpad.h"
 #include "remoting/host/evaluate_capability.h"
 #include "remoting/host/host_exit_codes.h"
@@ -29,6 +28,10 @@
 #include "remoting/host/switches.h"
 #include "remoting/host/usage_stats_consent.h"
 
+#if defined(REMOTING_MULTI_PROCESS)
+#include "mojo/edk/embedder/embedder.h"
+#endif  // defined(REMOTING_MULTI_PROCESS)
+
 #if defined(OS_MACOSX)
 #include "base/mac/scoped_nsautorelease_pool.h"
 #endif  // defined(OS_MACOSX)