Complete removing Blink gyp files.

third_party/WebKit/Source/modules/mediarecorder/BUILD.gn

Index: third_party/WebKit/Source/modules/mediarecorder/BUILD.gn
diff --git a/third_party/WebKit/Source/modules/beacon/BUILD.gn b/third_party/WebKit/Source/modules/mediarecorder/BUILD.gn
similarity index 65%
copy from third_party/WebKit/Source/modules/beacon/BUILD.gn
copy to third_party/WebKit/Source/modules/mediarecorder/BUILD.gn
index 6e37a0323387ffee1d0c91c8eb68d69076eef647..3a7806679532baaf4acb05aafa23f90d9867d485 100644
--- a/third_party/WebKit/Source/modules/beacon/BUILD.gn
+++ b/third_party/WebKit/Source/modules/mediarecorder/BUILD.gn
@@ -4,9 +4,11 @@
 
 import("//third_party/WebKit/Source/modules/modules.gni")
 
-blink_modules_sources("beacon") {
+blink_modules_sources("mediarecorder") {
   sources = [
-    "NavigatorBeacon.cpp",
-    "NavigatorBeacon.h",
+    "BlobEvent.cpp",
+    "BlobEvent.h",
+    "MediaRecorder.cpp",
+    "MediaRecorder.h",
   ]
 }