Implement the skeleton of an android content shell.

content/shell/shell_browser_main_parts.cc

Index: content/shell/shell_browser_main_parts.cc
diff --git a/content/shell/shell_browser_main_parts.cc b/content/shell/shell_browser_main_parts.cc
index 10743885cb8c7a1c159823b750846741784bc08d..c7d0b4ba6ab36a6b0d6d068e1914156d4b191177 100644
--- a/content/shell/shell_browser_main_parts.cc
+++ b/content/shell/shell_browser_main_parts.cc
@@ -19,6 +19,10 @@
 #include "net/base/net_module.h"
 #include "ui/base/clipboard/clipboard.h"
 
+#if defined(OS_ANDROID)
+#include "base/message_pump_android.h"
+#endif
+
 namespace content {
 
 static GURL GetStartupURL() {
@@ -30,6 +34,12 @@ static GURL GetStartupURL() {
   return GURL(args[0]);
 }
 
+#if defined(OS_ANDROID)
+static base::MessagePump* CreateMessagePumpForShell() {
+  return new base::MessagePumpForUI();
+}
+#endif
+
 ShellBrowserMainParts::ShellBrowserMainParts(
     const content::MainFunctionParams& parameters)
     : BrowserMainParts(),
@@ -41,6 +51,10 @@ ShellBrowserMainParts::~ShellBrowserMainParts() {
 
 #if !defined(OS_MACOSX)
 void ShellBrowserMainParts::PreMainMessageLoopStart() {
+#if defined(OS_ANDROID)
+  MessageLoopForUI::InitMessagePumpForUIFactory(&CreateMessagePumpForShell);
+  MessageLoopForUI::current()->Start();
+#endif
 }
 #endif
 
@@ -48,6 +62,12 @@ int ShellBrowserMainParts::PreCreateThreads() {
   return 0;
 }
 
+void ShellBrowserMainParts::PreEarlyInitialization() {
+#if defined(OS_ANDROID)
+  // TODO(tedchoc): Setup the NetworkChangeNotifier here.
+#endif
+}
+
 void ShellBrowserMainParts::PreMainMessageLoopRun() {
   browser_context_.reset(new ShellBrowserContext);