Add tracing to early-outs of accelerated surface presents

ui/surface/accelerated_surface_win.cc

Index: ui/surface/accelerated_surface_win.cc
diff --git a/ui/surface/accelerated_surface_win.cc b/ui/surface/accelerated_surface_win.cc
index 2fadfc00fdd31e64b4ca04acd7695b803428162b..16b2cc10677839315bad74b38e7587cf8401ec65 100644
--- a/ui/surface/accelerated_surface_win.cc
+++ b/ui/surface/accelerated_surface_win.cc
@@ -689,6 +689,7 @@ void AcceleratedPresenter::DoPresentAndAcknowledge(
   if (!present_thread_->device()) {
     if (!completion_task.is_null())
       completion_task.Run(false, base::TimeTicks(), base::TimeDelta());
+    TRACE_EVENT0("gpu", "EarlyOut_NoDevice");
     return;
   }
 
@@ -697,8 +698,10 @@ void AcceleratedPresenter::DoPresentAndAcknowledge(
       base::Bind(completion_task, true, base::TimeTicks(), base::TimeDelta()));
 
   // If invalidated, do nothing, the window is gone.
-  if (!window_)
+  if (!window_) {
+    TRACE_EVENT0("gpu", "EarlyOut_NoWindow");
     return;
+  }
 
   // If the window is a different size than the swap chain that is being
   // presented then drop the frame.
@@ -706,6 +709,11 @@ void AcceleratedPresenter::DoPresentAndAcknowledge(
   GetClientRect(window_, &window_rect);
   if (hidden_ && (window_rect.right != size.width() ||
       window_rect.bottom != size.height())) {
+    TRACE_EVENT2("gpu", "EarlyOut_WrongWindowSize",
+                 "backwidth", size.width(), "backheight", size.height());
+    TRACE_EVENT2("gpu", "EarlyOut_WrongWindowSize2",
+                 "windowwidth", window_rect.right,
+                 "windowheight", window_rect.bottom);
     return;
   }
 
@@ -758,15 +766,19 @@ void AcceleratedPresenter::DoPresentAndAcknowledge(
 
   base::win::ScopedComPtr<IDirect3DSurface9> source_surface;
   hr = source_texture_->GetSurfaceLevel(0, source_surface.Receive());
-  if (FAILED(hr))
+  if (FAILED(hr)) {
+    TRACE_EVENT0("gpu", "EarlyOut_NoSurfaceLevel");
     return;
+  }
 
   base::win::ScopedComPtr<IDirect3DSurface9> dest_surface;
   hr = swap_chain_->GetBackBuffer(0,
                                   D3DBACKBUFFER_TYPE_MONO,
                                   dest_surface.Receive());
-  if (FAILED(hr))
+  if (FAILED(hr)) {
+    TRACE_EVENT0("gpu", "EarlyOut_NoBackbuffer");
     return;
+  }
 
   RECT rect = {
     0, 0,