Add native file picker impl using SelectFileDialog.

chrome/browser/intents/native_services.h

Index: chrome/browser/intents/native_services.h
diff --git a/chrome/browser/intents/native_services.h b/chrome/browser/intents/native_services.h
index 12846a163955f43be2468d4623f3960a7bf6ffb4..4a7c4e209c7953c1a60ef12d27bc8dbf32953ac5 100644
--- a/chrome/browser/intents/native_services.h
+++ b/chrome/browser/intents/native_services.h
@@ -12,6 +12,7 @@
 class GURL;
 
 namespace content {
+class WebContents;
 class WebIntentsDispatcher;
 }
 
@@ -29,7 +30,7 @@ extern const char kNativeFilePickerUrl[];
 
 typedef std::vector<webkit_glue::WebIntentServiceData> IntentServiceList;
 
-#if defined(TOOLKIT_VIEWS)
+#if !defined(ANDROID)
 // Factory capable of producing a file picker NativeService.
 class FilePickerFactory {
  public:
@@ -38,7 +39,9 @@ class FilePickerFactory {
 
   // Returns a new instance of FilePickerService.
   static IntentServiceHost* CreateServiceInstance(
-      const webkit_glue::WebIntentData& intent);
+      const webkit_glue::WebIntentData& intent,
+      content::WebContents* web_contents);
+
   DISALLOW_COPY_AND_ASSIGN(FilePickerFactory);
 };
 #endif
@@ -50,17 +53,22 @@ class NativeServiceRegistry {
   void GetSupportedServices(
       const string16& action,
       IntentServiceList* services);
+
   DISALLOW_COPY_AND_ASSIGN(NativeServiceRegistry);
 };
 
 class NativeServiceFactory {
  public:
   NativeServiceFactory();
-  // Returns a NativeService instance suitable to handle
-  // |intent|.
+  // Returns a NativeService instance suitable to handle |intent|.
+  // |url| identifies the service to be instantiated, and |web_contents|
+  // is the web_contents that may be be needed to serve as host environment
+  // to the service.
   IntentServiceHost* CreateServiceInstance(
       const GURL& url,
-      const webkit_glue::WebIntentData& intent);
+      const webkit_glue::WebIntentData& intent,
+      content::WebContents* web_contents);
+
   DISALLOW_COPY_AND_ASSIGN(NativeServiceFactory);
 };