Use runtime_deps to tell create_installer_archive what dlls to copy.

chrome/installer/mini_installer/BUILD.gn

Index: chrome/installer/mini_installer/BUILD.gn
diff --git a/chrome/installer/mini_installer/BUILD.gn b/chrome/installer/mini_installer/BUILD.gn
index 4eecab413281aa296d2a566541b7a4ac60a6aace..8d5a288c80ea444499a50b9491f1f29368331984 100644
--- a/chrome/installer/mini_installer/BUILD.gn
+++ b/chrome/installer/mini_installer/BUILD.gn
@@ -68,6 +68,18 @@ source_set("unit_tests") {
 
 packed_files_rc_file = "$target_gen_dir/packed_files.rc"
 
+# The runtime deps are used to tell create_installer_archive what component
+# build DLLs need to be packaged.

[gab, 2016/06/20 15:15:26]

s/component build DLLs need to be packaged/component DLLs need to be packaged in
a component build/

+setup_runtime_deps = "$root_gen_dir/setup.runtime_deps"
+installer_runtime_deps = "$root_gen_dir/mini_installer.runtime_deps"

[gab, 2016/06/20 15:15:26]

s/installer_runtime_deps/component_runtime_deps/

or chrome_runtime_deps (see below)

+
+group("setup_runtime_deps") {
+  write_runtime_deps = setup_runtime_deps
+  data_deps = [
+    "//chrome/installer/setup",
+  ]
+}
+
 action("archive") {
   script = "//chrome/tools/build/win/create_installer_archive.py"
 
@@ -98,6 +110,10 @@ action("archive") {
     rebase_path(packed_files_rc_file, root_build_dir),
     "--target_arch=$current_cpu",
     "--distribution=_google_chrome",
+    "--runtime_deps",
+    rebase_path(installer_runtime_deps, root_build_dir),
+    "--setup_runtime_deps",
+    rebase_path(setup_runtime_deps, root_build_dir),
 
     # Optional arguments to generate diff installer.
     #'--last_chrome_installer=C:/Temp/base',
@@ -109,6 +125,7 @@ action("archive") {
   ]
 
   deps = [
+    ":setup_runtime_deps",
     "//chrome",
     "//chrome:main_dll",
     "//chrome/browser/extensions/default_extensions",
@@ -151,6 +168,8 @@ action("archive") {
     deps += [ "//v8" ]
   }
 
+  write_runtime_deps = installer_runtime_deps

[gab, 2016/06/20 15:15:26]

These actually only need to be the deps for chrome's target, not mini_installer.

+
   depfile = "$target_gen_dir/archive.d"
   args += [
     "--depfile",