Replace ASSERT with DCHECK in platform/

third_party/WebKit/Source/platform/wtf/text/StringImplCF.cpp

Index: third_party/WebKit/Source/platform/wtf/text/StringImplCF.cpp
diff --git a/third_party/WebKit/Source/platform/wtf/text/StringImplCF.cpp b/third_party/WebKit/Source/platform/wtf/text/StringImplCF.cpp
index 45950bf943e1890a0ccdccd4852469d15a773a53..6aed879b0f057560690102405e432ec6075a6a22 100644
--- a/third_party/WebKit/Source/platform/wtf/text/StringImplCF.cpp
+++ b/third_party/WebKit/Source/platform/wtf/text/StringImplCF.cpp
@@ -65,7 +65,7 @@ static void* Allocate(CFIndex size, CFOptionFlags, void*) {
 static void* Reallocate(void* pointer, CFIndex new_size, CFOptionFlags, void*) {
   size_t new_allocation_size = sizeof(StringImpl*) + new_size;
   StringImpl** header = static_cast<StringImpl**>(pointer) - 1;
-  ASSERT(!*header);
+  DCHECK(!*header);
   header = static_cast<StringImpl**>(WTF::Partitions::FastRealloc(
       header, new_allocation_size, WTF_HEAP_PROFILER_TYPE_NAME(StringImpl*)));
   return header + 1;