Revert of Move synthetic gesture input to be aligned with BeginFrame.

content/browser/renderer_host/render_widget_host_view_mac.mm

Index: content/browser/renderer_host/render_widget_host_view_mac.mm
diff --git a/content/browser/renderer_host/render_widget_host_view_mac.mm b/content/browser/renderer_host/render_widget_host_view_mac.mm
index fa22008815a79b8747088da8dfaeb84b2c7bd229..b5444dc934af1ad077e899962eb9a4054d536c96 100644
--- a/content/browser/renderer_host/render_widget_host_view_mac.mm
+++ b/content/browser/renderer_host/render_widget_host_view_mac.mm
@@ -415,9 +415,6 @@
 
 void RenderWidgetHostViewMac::BrowserCompositorMacSendBeginFrame(
     const cc::BeginFrameArgs& args) {
-  needs_flush_input_ = false;
-  render_widget_host_->FlushInput();
-  UpdateNeedsBeginFramesInternal();
   render_widget_host_->Send(
       new ViewMsg_BeginFrame(render_widget_host_->GetRoutingID(), args));
 }
@@ -454,8 +451,6 @@
       allow_pause_for_resize_or_repaint_(true),
       is_guest_view_hack_(is_guest_view_hack),
       fullscreen_parent_host_view_(nullptr),
-      needs_begin_frames_(false),
-      needs_flush_input_(false),
       weak_factory_(this) {
   // |cocoa_view_| owns us and we will be deleted when |cocoa_view_|
   // goes away.  Since we autorelease it, our caller must put
@@ -1193,18 +1188,7 @@
 }
 
 void RenderWidgetHostViewMac::SetNeedsBeginFrames(bool needs_begin_frames) {
-  needs_begin_frames_ = needs_begin_frames;
-  UpdateNeedsBeginFramesInternal();
-}
-
-void RenderWidgetHostViewMac::OnSetNeedsFlushInput() {
-  needs_flush_input_ = true;
-  UpdateNeedsBeginFramesInternal();
-}
-
-void RenderWidgetHostViewMac::UpdateNeedsBeginFramesInternal() {
-  browser_compositor_->SetNeedsBeginFrames(needs_begin_frames_ ||
-                                           needs_flush_input_);
+  browser_compositor_->SetNeedsBeginFrames(needs_begin_frames);
 }
 
 void RenderWidgetHostViewMac::KillSelf() {