Use shared memory for moving data over BlobChannel Mojo interface.

blimp/test/BUILD.gn

Index: blimp/test/BUILD.gn
diff --git a/services/shell/public/cpp/test/BUILD.gn b/blimp/test/BUILD.gn
similarity index 56%
copy from services/shell/public/cpp/test/BUILD.gn
copy to blimp/test/BUILD.gn
index 48bf72b8a86c074542f83647b0778fac3239a327..20832bc1c72c23d21ec88ae5cdb6d991580a2bfb 100644
--- a/services/shell/public/cpp/test/BUILD.gn
+++ b/blimp/test/BUILD.gn
@@ -4,25 +4,15 @@
 
 import("//testing/test.gni")
 
-group("test") {
-  testonly = true
-  deps = [
-    ":run_all_shelltests",
-  ]
-}
-
-source_set("run_all_shelltests") {
+source_set("run_all_unittests") {
   testonly = true
 
   sources = [
-    "run_all_shelltests.cc",
+    "run_all_unittests.cc",
   ]
 
   deps = [
-    "//base",
     "//base/test:test_support",
     "//mojo/edk/system",
-    "//services/shell/background:lib",
-    "//services/shell/background:main",
   ]
 }