Revert of BlankDetectorDesktopCapturerWrapper to detect a blank DesktopFrame

webrtc/modules/desktop_capture/BUILD.gn

Index: webrtc/modules/desktop_capture/BUILD.gn
diff --git a/webrtc/modules/desktop_capture/BUILD.gn b/webrtc/modules/desktop_capture/BUILD.gn
index 3f3130dd4d8efa0d4bae645131734d8774c198af..151627de3913f93ae8e5f5ac91f0befbbc16cffd 100644
--- a/webrtc/modules/desktop_capture/BUILD.gn
+++ b/webrtc/modules/desktop_capture/BUILD.gn
@@ -58,7 +58,6 @@
   rtc_source_set("desktop_capture_unittests") {
     testonly = true
     sources = [
-      "blank_detector_desktop_capturer_wrapper_unittest.cc",
       "desktop_and_cursor_composer_unittest.cc",
       "desktop_capturer_differ_wrapper_unittest.cc",
       "desktop_frame_rotation_unittest.cc",
@@ -78,6 +77,7 @@
       ":desktop_capture",
       ":desktop_capture_mock",
       ":primitives",
+      ":rgba_color",
       "../..:webrtc_common",
       "../../base:rtc_base_approved",
       "../../system_wrappers:system_wrappers",
@@ -99,11 +99,29 @@
     }
   }
 
-  source_set("screen_drawer") {
+  source_set("rgba_color") {
     testonly = true
 
     public_deps = [
       ":desktop_capture",
+    ]
+
+    sources = [
+      "rgba_color.cc",
+      "rgba_color.h",
+    ]
+
+    deps = [
+      ":primitives",
+      "../..:webrtc_common",
+    ]
+  }
+
+  source_set("screen_drawer") {
+    testonly = true
+
+    public_deps = [
+      ":rgba_color",
     ]
 
     sources = [
@@ -126,6 +144,7 @@
 
     public_deps = [
       ":desktop_capture",
+      ":rgba_color",
       "//testing/gmock",
     ]
 
@@ -148,8 +167,6 @@
 
 rtc_static_library("desktop_capture") {
   sources = [
-    "blank_detector_desktop_capturer_wrapper.cc",
-    "blank_detector_desktop_capturer_wrapper.h",
     "cropped_desktop_frame.cc",
     "cropped_desktop_frame.h",
     "cropping_window_capturer.cc",
@@ -188,8 +205,6 @@
     "mouse_cursor_monitor_win.cc",
     "resolution_change_detector.cc",
     "resolution_change_detector.h",
-    "rgba_color.cc",
-    "rgba_color.h",
     "screen_capture_frame_queue.h",
     "screen_capturer_helper.cc",
     "screen_capturer_helper.h",