Change DumpProcessWithoutCrash to use load-time dynamic linking

base/debug/dump_without_crashing.cc

Index: base/debug/dump_without_crashing.cc
diff --git a/base/debug/dump_without_crashing.cc b/base/debug/dump_without_crashing.cc
index 4b338ca2930b69d110fd545176029aec75f9cd4a..307e64e98f7da70d053c9fd7d3318602d0ee00fb 100644
--- a/base/debug/dump_without_crashing.cc
+++ b/base/debug/dump_without_crashing.cc
@@ -27,6 +27,12 @@ bool DumpWithoutCrashing() {
 }
 
 void SetDumpWithoutCrashingFunction(void (CDECL *function)()) {
+#if !defined(COMPONENT_BUILD)
+  // In component builds, the same base is shared between modules
+  // so might be initialized several times. However in non-
+  // component builds this should never happen.
+  DCHECK(!dump_without_crashing_function_);
+#endif
   dump_without_crashing_function_ = function;
 }