Remove RWHV::SetBounds() from the public API, and make comments clearer.

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 f2c270f4e98538aa89fa4d6c538509d511e509ab..01636a24c55fc2a9d96316c105f07ffe74156e7a 100644
--- a/content/browser/renderer_host/render_widget_host_view_mac.mm
+++ b/content/browser/renderer_host/render_widget_host_view_mac.mm
@@ -801,12 +801,15 @@ new BrowserCompositorMac(this, this, render_widget_host_->is_hidden(),
 void RenderWidgetHostViewMac::SetSize(const gfx::Size& size) {
   gfx::Rect rect = GetViewBounds();
   rect.set_size(size);
-  SetBounds(rect);
+  RequestTopLevelBoundsInScreen(rect);
 }
 
-void RenderWidgetHostViewMac::SetBounds(const gfx::Rect& rect) {
-  // |rect.size()| is view coordinates, |rect.origin| is screen coordinates,
-  // TODO(thakis): fix, http://crbug.com/73362
+void RenderWidgetHostViewMac::RequestTopLevelBoundsInScreen(
+    const gfx::Rect& rect) {
+  // TODO(miu): Fix: Some callers pass-in |rect.size()| as view coordinates,
+  // but the interface requires |rect| to be in screen coordinates.
+  // http://crbug.com/73362
+
   if (render_widget_host_->is_hidden())
     return;