Allow native_viewport to create new native windows on demand on Android.

services/native_viewport/native_viewport_impl.cc

Index: services/native_viewport/native_viewport_impl.cc
diff --git a/services/native_viewport/native_viewport_impl.cc b/services/native_viewport/native_viewport_impl.cc
index 1fcb20f701312e71437af1a1c8bfb199877c0ec0..ce258332a8acf7acecf63e12da964b1bd735fb9a 100644
--- a/services/native_viewport/native_viewport_impl.cc
+++ b/services/native_viewport/native_viewport_impl.cc
@@ -11,6 +11,7 @@
 #include "base/time/time.h"
 #include "mojo/converters/geometry/geometry_type_converters.h"
 #include "mojo/converters/native_viewport/surface_configuration_type_converters.h"
+#include "mojo/public/cpp/application/application_impl.h"
 #include "mojo/public/cpp/application/interface_factory.h"
 #include "services/gles2/gpu_state.h"
 #include "services/native_viewport/platform_viewport_headless.h"
@@ -20,16 +21,17 @@
 namespace native_viewport {
 
 NativeViewportImpl::NativeViewportImpl(
+    mojo::ApplicationImpl* application,
     bool is_headless,
     const scoped_refptr<gles2::GpuState>& gpu_state,
     mojo::InterfaceRequest<mojo::NativeViewport> request)
-    : is_headless_(is_headless),
+    : application_(application),
+      is_headless_(is_headless),
       context_provider_(gpu_state),
       sent_metrics_(false),
       metrics_(mojo::ViewportMetrics::New()),
       binding_(this, request.Pass()),
-      weak_factory_(this) {
-}
+      weak_factory_(this) {}
 
 NativeViewportImpl::~NativeViewportImpl() {
   // Destroy the NativeViewport early on as it may call us back during
@@ -51,7 +53,7 @@ void NativeViewportImpl::Create(
   if (is_headless_)
     platform_viewport_ = PlatformViewportHeadless::Create(this);
   else
-    platform_viewport_ = PlatformViewport::Create(this);
+    platform_viewport_ = PlatformViewport::Create(application_, this);
   platform_viewport_->Init(gfx::Rect(size.To<gfx::Size>()));
 }