Repurpose views+content example into a generic multiprocess views runtime

ui/views/examples/content_client/examples_main.cc

Index: ui/views/examples/content_client/examples_main.cc
diff --git a/ui/views/examples/content_client/examples_main.cc b/ui/views/examples/content_client/examples_main.cc
index 559838713e8634bfb3b369f17893a7e176a7b413..5ce4c87f4901a325ad900c21576cf1a6269ad98e 100644
--- a/ui/views/examples/content_client/examples_main.cc
+++ b/ui/views/examples/content_client/examples_main.cc
@@ -2,31 +2,42 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+#include "ui/views/examples/content_client/examples_main.h"
+
 #include "content/public/app/content_main.h"
 #include "ui/views/examples/content_client/examples_main_delegate.h"
 
-#if defined(OS_WIN)
-#include "content/public/app/startup_helper_win.h"
-#include "sandbox/win/src/sandbox_types.h"
-#endif
+namespace views {
+namespace examples {
 
 #if defined(OS_WIN)
-int APIENTRY wWinMain(HINSTANCE instance, HINSTANCE, wchar_t*, int) {
+ExamplesMainParams::ExamplesMainParams(
+    HINSTANCE instance, sandbox::SandboxInterfaceInfo* sandbox_info)
+    : instance_(instance), sandbox_info_(sandbox_info) {
+}
 #else
-int main(int argc, const char** argv) {
+ExamplesMainParams::ExamplesMainParams(int argc, const char** argv)
+    : argc_(argc), argv_(argv) {
+}
 #endif
-  views::examples::ExamplesMainDelegate delegate;
+
+ExamplesMainParams::~ExamplesMainParams() {
+}
+
+int ExamplesMainParams::RunMain() {
+  views::examples::ExamplesMainDelegate delegate(this);
   content::ContentMainParams params(&delegate);
 
 #if defined(OS_WIN)
-  sandbox::SandboxInterfaceInfo sandbox_info = {0};
-  content::InitializeSandboxInfo(&sandbox_info);
-  params.instance = instance;
-  params.sandbox_info = &sandbox_info;
+  params.instance = instance_;
+  params.sandbox_info = sandbox_info_;
 #else
-  params.argc = argc;
-  params.argv = argv;
+  params.argc = argc_;
+  params.argv = argv_;
 #endif
 
   return content::ContentMain(params);
 }
+
+}  // namespace examples
+}  // namespace views