BrowserPlugin/RenderFrameProxy cleanup + remove AutoResize Seq Numbers

This change cleans up some logic in BrowserPlugin and
RenderFrameProxy, now that we fully support child-allocated local
surface IDs. Additionally, it removes AutoResize sequence numbers
from the code, as these were no longer used.

Bug: 811944
Change-Id: Ic15d6fbdbb2851282b9604dadfb7be47e315d506
Reviewed-on: https://chromium-review.googlesource.com/1024490
Reviewed-by: Tom Sepez <[email protected]>
Reviewed-by: Antoine Labour <[email protected]>
Reviewed-by: Fady Samuel <[email protected]>
Commit-Queue: Eric Karl <[email protected]>
Cr-Commit-Position: refs/heads/master@{#553282}
diff --git a/content/renderer/render_frame_proxy.h b/content/renderer/render_frame_proxy.h
index 47a4faf1..0d3869e 100644
--- a/content/renderer/render_frame_proxy.h
+++ b/content/renderer/render_frame_proxy.h
@@ -161,7 +161,7 @@
       std::unique_ptr<MusEmbeddedFrame> mus_embedded_frame);
 #endif
 
-  void WasResized(const viz::LocalSurfaceId& child_allocated_surface_id);
+  void WasResized();
 
   const gfx::Rect& screen_space_rect() const {
     return pending_resize_params_.screen_space_rect;
@@ -175,10 +175,6 @@
     return pending_resize_params_.screen_info;
   }
 
-  uint64_t auto_size_sequence_number() const {
-    return pending_resize_params_.auto_resize_sequence_number;
-  }
-
   const viz::FrameSinkId& frame_sink_id() const { return frame_sink_id_; }
 
   // blink::WebRemoteFrameClient implementation:
@@ -254,8 +250,8 @@
   void OnSetHasReceivedUserGesture();
   void OnScrollRectToVisible(const gfx::Rect& rect_to_scroll,
                              const blink::WebScrollIntoViewParams& params);
-  void OnResizeDueToAutoResize(uint64_t sequence_number,
-                               viz::LocalSurfaceId child_allocated_surface_id);
+  void OnResizeDueToAutoResize(
+      const viz::LocalSurfaceId& child_allocated_surface_id);
   void OnEnableAutoResize(const gfx::Size& min_size, const gfx::Size& max_size);
   void OnDisableAutoResize();
   void OnSetHasReceivedUserGestureBeforeNavigation(bool value);