fix: remove unnecessary patch (#20390)

Patch which this pr removes adds new version of
BrowserCompositorMac::GetCompositor. There is this function in
BrowserCompositorMac with specifier const. Chromium's function
returns parent's compositor if parent is set. Electron's version
doesn't and - as a result - constrained dialogs won't be displayed
correctly if they don't have its own compositor.

patches/chromium/.patches

@@ -5,7 +5,6 @@ accelerator.patch
 blink_file_path.patch
 blink_local_frame.patch
 blink_world_context.patch
-browser_compositor_mac.patch
 can_create_window.patch
 disable_hidden.patch
 dom_storage_limits.patch

patches/chromium/browser_compositor_mac.patch

@@ -1,44 +0,0 @@
-From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
-From: Cheng Zhao <zcbenz@gmail.com>
-Date: Thu, 20 Sep 2018 17:45:14 -0700
-Subject: browser_compositor_mac.patch
-
-
-diff --git a/content/browser/renderer_host/browser_compositor_view_mac.h b/content/browser/renderer_host/browser_compositor_view_mac.h
-index de89d291e5cbc0981cf06170ed35502a1239136d..656f6c38d55d9f9af569bc772254ca13c279eeab 100644
---- a/content/browser/renderer_host/browser_compositor_view_mac.h
-+++ b/content/browser/renderer_host/browser_compositor_view_mac.h
-@@ -60,6 +60,8 @@ class CONTENT_EXPORT BrowserCompositorMac : public DelegatedFrameHostClient,
-   // These will not return nullptr until Destroy is called.
-   DelegatedFrameHost* GetDelegatedFrameHost();
- 
-+  ui::Layer* GetRootLayer() { return root_layer_.get(); }
-+
-   // Force a new surface id to be allocated. Returns true if the
-   // RenderWidgetHostImpl sent the resulting surface id to the renderer.
-   bool ForceNewSurfaceId();
-@@ -68,6 +70,7 @@ class CONTENT_EXPORT BrowserCompositorMac : public DelegatedFrameHostClient,
-   // no valid frame is available.
-   const gfx::CALayerParams* GetLastCALayerParams() const;
- 
-+  ui::Compositor* GetCompositor();
-   void DidCreateNewRendererCompositorFrameSink(
-       viz::mojom::CompositorFrameSinkClient* renderer_compositor_frame_sink);
-   void OnDidNotProduceFrame(const viz::BeginFrameAck& ack);
-diff --git a/content/browser/renderer_host/browser_compositor_view_mac.mm b/content/browser/renderer_host/browser_compositor_view_mac.mm
-index 8ddd790decc43af9820c97121a3b359e7cbb49ee..18019d5794f688ca07b35a665cc9800bb1d3047a 100644
---- a/content/browser/renderer_host/browser_compositor_view_mac.mm
-+++ b/content/browser/renderer_host/browser_compositor_view_mac.mm
-@@ -80,6 +80,12 @@
-   DCHECK_EQ(1u, num_erased);
- }
- 
-+ui::Compositor* BrowserCompositorMac::GetCompositor() {
-+  if (recyclable_compositor_)
-+    return recyclable_compositor_->compositor();
-+  return nullptr;
-+}
-+
- DelegatedFrameHost* BrowserCompositorMac::GetDelegatedFrameHost() {
-   DCHECK(delegated_frame_host_);
-   return delegated_frame_host_.get();