Revert of Link to DirectWrite directly, instead of calling LoadLibrary

content/child/dwrite_font_proxy/font_fallback_win_unittest.cc

Index: content/child/dwrite_font_proxy/font_fallback_win_unittest.cc
diff --git a/content/child/dwrite_font_proxy/font_fallback_win_unittest.cc b/content/child/dwrite_font_proxy/font_fallback_win_unittest.cc
index 4f8358f24731705554f241db52640188c7fb6b42..b5faca2bcc0128949cf4cf549b6f1e95ba20ef01 100644
--- a/content/child/dwrite_font_proxy/font_fallback_win_unittest.cc
+++ b/content/child/dwrite_font_proxy/font_fallback_win_unittest.cc
@@ -25,8 +25,7 @@
 class FontFallbackUnitTest : public testing::Test {
  public:
   FontFallbackUnitTest() {
-    DWriteCreateFactory(DWRITE_FACTORY_TYPE_SHARED,
-      __uuidof(IDWriteFactory), &factory_);
+    CreateDWriteFactory(&factory_);
 
     factory_->CreateNumberSubstitution(DWRITE_NUMBER_SUBSTITUTION_METHOD_NONE,
                                        L"en-us", true /* ignoreUserOverride */,
@@ -48,6 +47,22 @@
         &collection_, factory_.Get(), fake_collection_->GetSender());
   }
 
+  void CreateDWriteFactory(IUnknown** factory) {
+    using DWriteCreateFactoryProc = decltype(DWriteCreateFactory)*;
+    HMODULE dwrite_dll = LoadLibraryW(L"dwrite.dll");
+    if (!dwrite_dll)
+      return;
+
+    DWriteCreateFactoryProc dwrite_create_factory_proc =
+        reinterpret_cast<DWriteCreateFactoryProc>(
+            GetProcAddress(dwrite_dll, "DWriteCreateFactory"));
+    if (!dwrite_create_factory_proc)
+      return;
+
+    dwrite_create_factory_proc(DWRITE_FACTORY_TYPE_SHARED,
+                               __uuidof(IDWriteFactory), factory);
+  }
+
   scoped_refptr<FakeFontCollection> fake_collection_;
   mswr::ComPtr<IDWriteFactory> factory_;
   mswr::ComPtr<DWriteFontCollectionProxy> collection_;