Fix a TODO in pdf_child_init.cc

BUG=941663
R=thestig

Change-Id: I0271fb9ac7a1fe8471ba9ddefdf01348e3ac6a82
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1616361
Auto-Submit: Thomas Anderson <thomasanderson@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>
Cr-Commit-Position: refs/heads/master@{#660726}

chrome/child/pdf_child_init.cc

@@ -68,11 +68,7 @@ void InitializePDF() {
   // (https://bugs.chromium.org/p/pdfium/issues/detail?id=11).
 #if defined(COMPONENT_BUILD)
   HMODULE module = ::GetModuleHandleA("pdfium.dll");
-
-  // TODO(thomasanderson): Replace this condition with DCHECK(module) once
-  // PDFium is switched to a component.
-  if (!module)
-    module = CURRENT_MODULE();
+  DCHECK(module);
 #else
   HMODULE module = CURRENT_MODULE();
 #endif  // defined(COMPONENT_BUILD)