Revert of Extract re-usable InitializeMediaFoundation()

media/video/capture/win/video_capture_device_factory_win.cc

Index: media/video/capture/win/video_capture_device_factory_win.cc
diff --git a/media/video/capture/win/video_capture_device_factory_win.cc b/media/video/capture/win/video_capture_device_factory_win.cc
index 8b018fb19e0e1df2d0cb7867c799bc7aaea27e6d..7f0d665e4ab9e23fbc499200bd6b744b45ece1a9 100644
--- a/media/video/capture/win/video_capture_device_factory_win.cc
+++ b/media/video/capture/win/video_capture_device_factory_win.cc
@@ -8,6 +8,7 @@
 #include <mferror.h>
 
 #include "base/command_line.h"
+#include "base/lazy_instance.h"
 #include "base/metrics/histogram.h"
 #include "base/strings/string_util.h"
 #include "base/strings/sys_string_conversions.h"
@@ -16,7 +17,6 @@
 #include "base/win/scoped_variant.h"
 #include "base/win/windows_version.h"
 #include "media/base/media_switches.h"
-#include "media/base/win/mf_initializer.h"
 #include "media/video/capture/win/video_capture_device_mf_win.h"
 #include "media/video/capture/win/video_capture_device_win.h"
 
@@ -39,6 +39,16 @@
   BLACKLISTED_CAMERA_MAX = BLACKLISTED_CAMERA_CYBERLINK_WEBCAM_SPLITTER
 };
 
+// Lazy Instance to initialize the MediaFoundation Library.
+class MFInitializerSingleton {
+ public:
+  MFInitializerSingleton() { MFStartup(MF_VERSION, MFSTARTUP_LITE); }
+  ~MFInitializerSingleton() { MFShutdown(); }
+};
+
+static base::LazyInstance<MFInitializerSingleton> g_mf_initialize =
+    LAZY_INSTANCE_INITIALIZER;
+
 // Blacklisted devices are identified by a characteristic prefix of the name.
 // This prefix is used case-insensitively. This list must be kept in sync with
 // |BlacklistedCameraNames|.
@@ -50,6 +60,10 @@
   "CyberLink Webcam Splitter",
 };
 
+static void EnsureMediaFoundationInit() {
+  g_mf_initialize.Get();
+}
+
 static bool LoadMediaFoundationDlls() {
   static const wchar_t* const kMfDLLs[] = {
     L"%WINDIR%\\system32\\mf.dll",
@@ -69,7 +83,7 @@
 static bool PrepareVideoCaptureAttributesMediaFoundation(
     IMFAttributes** attributes,
     int count) {
-  InitializeMediaFoundation();
+  EnsureMediaFoundationInit();
 
   if (FAILED(MFCreateAttributes(attributes, count)))
     return false;