Send size to NativeViewportClient::OnCreated instead of GLES2Client::DidCreateContext

mojo/examples/sample_app/gles2_client_impl.cc

Index: mojo/examples/sample_app/gles2_client_impl.cc
diff --git a/mojo/examples/sample_app/gles2_client_impl.cc b/mojo/examples/sample_app/gles2_client_impl.cc
index b3f2003aac81498c26044a27cf04d86541b4173a..eb7f47b3cd8ba12fac697a846b1fb05e93316800 100644
--- a/mojo/examples/sample_app/gles2_client_impl.cc
+++ b/mojo/examples/sample_app/gles2_client_impl.cc
@@ -22,7 +22,8 @@ float CalculateDragDistance(const gfx::PointF& start, const Point& end) {
 }
 
 GLES2ClientImpl::GLES2ClientImpl(ScopedMessagePipeHandle pipe)
-    : getting_animation_frames_(false) {
+    : getting_animation_frames_(false),
+      context_created_(false) {
   context_ = MojoGLES2CreateContext(
       pipe.release().value(),
       &DidCreateContextThunk,
@@ -35,6 +36,11 @@ GLES2ClientImpl::~GLES2ClientImpl() {
   MojoGLES2DestroyContext(context_);
 }
 
+void GLES2ClientImpl::SetSize(const Size& size) {
+  size_ = gfx::Size(size.width(), size.height());
+  InitializeCubeIfNeeded();
+}
+
 void GLES2ClientImpl::HandleInputEvent(const Event& event) {
   switch (event.action()) {
   case ui::ET_MOUSE_PRESSED:
@@ -75,19 +81,21 @@ void GLES2ClientImpl::HandleInputEvent(const Event& event) {
   }
 }
 
-void GLES2ClientImpl::DidCreateContext(uint32_t width,
-                                       uint32_t height) {
+void GLES2ClientImpl::DidCreateContext() {
   MojoGLES2MakeCurrent(context_);
+  context_created_ = true;
+  InitializeCubeIfNeeded();
+}
 
-  cube_.Init(width, height);
+void GLES2ClientImpl::InitializeCubeIfNeeded() {
+  if (size_.IsEmpty() || !context_created_)
+    return;
+  cube_.Init(size_.width(), size_.height());
   RequestAnimationFrames();
 }
 
-void GLES2ClientImpl::DidCreateContextThunk(
-    void* closure,
-    uint32_t width,
-    uint32_t height) {
-  static_cast<GLES2ClientImpl*>(closure)->DidCreateContext(width, height);
+void GLES2ClientImpl::DidCreateContextThunk(void* closure) {
+  static_cast<GLES2ClientImpl*>(closure)->DidCreateContext();
 }
 
 void GLES2ClientImpl::ContextLost() {