Add --headless flag to Windows

headless/BUILD.gn

Index: headless/BUILD.gn
diff --git a/headless/BUILD.gn b/headless/BUILD.gn
index 55afe1f2833a2df59119165ab9391dc0350a1be4..bf9b1534fbbc7127a7d68eca09c9c77cef984095 100644
--- a/headless/BUILD.gn
+++ b/headless/BUILD.gn
@@ -19,9 +19,9 @@ config("headless_implementation") {
   }
 }
 
-group("headless") {
+group("headless_lib") {
   deps = [
-    "//headless:headless_lib",
+    "//headless:headless",
   ]
 }
 
@@ -202,7 +202,7 @@ action("gen_devtools_client_api") {
   ]
 }
 
-static_library("headless_lib") {
+component("headless") {
   sources = generated_devtools_api + [
               "app/headless_shell_switches.cc",
               "app/headless_shell_switches.h",
@@ -244,10 +244,6 @@ static_library("headless_lib") {
               "lib/headless_crash_reporter_client.h",
               "lib/headless_content_client.cc",
               "lib/headless_content_client.h",
-              "lib/headless_content_main_delegate.cc",
-              "lib/headless_content_main_delegate.h",
-              "lib/renderer/headless_content_renderer_client.cc",
-              "lib/renderer/headless_content_renderer_client.h",
               "public/headless_browser.cc",
               "public/headless_browser.h",
               "public/headless_browser_context.h",
@@ -328,9 +324,6 @@ static_library("headless_lib") {
     "//components/crash/content/browser",
     "//components/security_state/content",
     "//components/security_state/core",
-    "//content/public/app:both",
-    "//content/public/browser",
-    "//content/public/child:child",
     "//content/public/common",
     "//content/public/common:service_names",
     "//services/service_manager/public/cpp",
@@ -342,15 +335,24 @@ static_library("headless_lib") {
     "//url",
   ]
 
-  if (!is_mac) {
-    deps += [ "//ui/aura" ]
+  if (is_component_build) {
+    sources += [
+      "lib/headless_content_main_delegate.cc",
+      "lib/headless_content_main_delegate.h",
+      "lib/renderer/headless_content_renderer_client.cc",
+      "lib/renderer/headless_content_renderer_client.h",
+    ]
+
+    if (enable_basic_printing) {
+      deps += [
+        "//components/printing/browser",
+        "//components/printing/renderer",
+      ]
+    }
   }
 
-  if (enable_basic_printing) {
-    deps += [
-      "//components/printing/browser",
-      "//components/printing/renderer",
-    ]
+  if (!is_mac) {
+    deps += [ "//ui/aura" ]
   }
 
   if (headless_use_embedded_resources) {
@@ -366,10 +368,34 @@ static_library("headless_lib") {
   if (use_ozone) {
     deps += [ "//ui/ozone" ]
   }
-
   configs += [ ":headless_implementation" ]
 }
 
+# Headless renderer is a convenience source set that includes headless classes
+# that depend on the reenderer. These are not added in case of a component build
+# since in that case they are already included in the headless component.
+source_set("headless_renderer") {
+  deps = [
+    ":headless",
+  ]
+  if (!is_component_build) {
+    sources = [
+      "lib/headless_content_main_delegate.cc",
+      "lib/headless_content_main_delegate.h",
+      "lib/renderer/headless_content_renderer_client.cc",
+      "lib/renderer/headless_content_renderer_client.h",
+    ]
+    deps += [ "//ui/base" ]
+    if (enable_basic_printing) {
+      deps += [
+        "//components/printing/browser",
+        "//components/printing/renderer",
+      ]
+    }
+    configs += [ ":headless_implementation" ]
+  }
+}
+
 group("headless_tests") {
   testonly = true
 
@@ -392,7 +418,7 @@ test("headless_unittests") {
   ]
 
   deps = [
-    ":headless_lib",
+    ":headless",
     "//base/test:run_all_unittests",
     "//base/test:test_support",
     "//testing/gmock",
@@ -466,15 +492,21 @@ test("headless_browsertests") {
   deps = [
     ":embedder_mojo_for_testing",
     ":headless_browser_tests_pak",
+    ":headless_renderer",
     "//base",
     "//content/test:test_support",
-    "//headless:headless_lib",
     "//testing/gmock",
     "//testing/gtest",
   ]
 }
 
-static_library("headless_shell_lib") {
+# Headless library with only browser dependencies. This is used when no child
+# dependencies are needed in the target (e.g. chrome:main_dll).
+static_library("headless_shell_browser_lib") {
+  if (is_multi_dll_chrome) {
+    defines = [ "CHROME_MULTIPLE_DLL_BROWSER" ]
+  }
+
   sources = [
     "app/headless_shell.cc",
     "app/headless_shell.h",
@@ -482,34 +514,93 @@ static_library("headless_shell_lib") {
     "app/headless_shell_switches.h",
     "app/shell_navigation_request.cc",
     "app/shell_navigation_request.h",
+    "lib/headless_content_main_delegate.cc",
+    "lib/headless_content_main_delegate.h",
     "public/headless_shell.h",
   ]
 
   deps = [
-    "//headless:headless_lib",
+    ":headless",
+    "//content/public/browser",
+    "//content/public/common",
   ]
 
+  if (is_win) {
+    deps += [
+      "//content:sandbox_helper_win",
+      "//sandbox",
+    ]
+  }
+
   configs += [ ":headless_implementation" ]
 }
 
-executable("headless_shell") {
+# Headless library with child specific dependencies (e.g., renderer). This
+# is used when no browser depencendies are needed (e.g. chrome:child_dll).
+static_library("headless_shell_child_lib") {
+  if (is_multi_dll_chrome) {
+    defines = [ "CHROME_MULTIPLE_DLL_CHILD" ]
+  }
+
   sources = [
-    "app/headless_shell_main.cc",
+    "app/headless_shell.cc",
+    "app/headless_shell.h",
+    "app/headless_shell_switches.cc",
+    "app/headless_shell_switches.h",
+    "app/shell_navigation_request.cc",
+    "app/shell_navigation_request.h",
+    "lib/headless_content_main_delegate.cc",
+    "lib/headless_content_main_delegate.h",
+    "public/headless_shell.h",
   ]
 
   deps = [
-    "//headless:headless_shell_lib",
+    ":headless_renderer",
+    "//content/public/child:child",
+    "//net",
+    "//ui/base",
+  ]
+
+  configs += [ ":headless_implementation" ]
+}
+
+# Headless library with all included dependencies. Use this library unless you
+# have browser/child dependencies restrictions.
+static_library("headless_shell_lib") {
+  sources = [
+    "app/headless_shell.cc",
+    "app/headless_shell.h",
+    "app/headless_shell_switches.cc",
+    "app/headless_shell_switches.h",
+    "app/shell_navigation_request.cc",
+    "app/shell_navigation_request.h",
+    "public/headless_shell.h",
+  ]
+
+  deps = [
+    ":headless_renderer",
+    "//content/public/app:both",
+    "//content/public/browser",
+    "//content/public/child:child",
+    "//content/public/common",
   ]
 
   if (is_win) {
     deps += [
-      "//build/win:default_exe_manifest",
       "//content:sandbox_helper_win",
       "//sandbox",
     ]
   }
+}
 
-  configs += [ ":headless_implementation" ]
+executable("headless_shell") {
+  sources = [
+    "app/headless_shell_main.cc",
+  ]
+
+  deps = [
+    ":headless_shell_lib",
+  ]
 }
 
 process_version("version_header") {
@@ -527,6 +618,6 @@ executable("headless_example") {
   ]
 
   deps = [
-    "//headless:headless_shell_lib",
+    ":headless_shell_lib",
   ]
 }