[DevTools] Reduce API surface of String16.

third_party/WebKit/Source/platform/v8_inspector/V8StackTraceImpl.cpp

Index: third_party/WebKit/Source/platform/v8_inspector/V8StackTraceImpl.cpp
diff --git a/third_party/WebKit/Source/platform/v8_inspector/V8StackTraceImpl.cpp b/third_party/WebKit/Source/platform/v8_inspector/V8StackTraceImpl.cpp
index 0a8e6e1e48933605b0349b59f902895ac09a1b6b..fb8537123dfb9741ea2f41dfc91290c8749a005c 100644
--- a/third_party/WebKit/Source/platform/v8_inspector/V8StackTraceImpl.cpp
+++ b/third_party/WebKit/Source/platform/v8_inspector/V8StackTraceImpl.cpp
@@ -26,7 +26,7 @@ static const v8::StackTrace::StackTraceOptions stackTraceOptions = static_cast<v
 
 V8StackTraceImpl::Frame toFrame(v8::Local<v8::StackFrame> frame)
 {
-    String16 scriptId = String16::fromInteger(frame->GetScriptId());
+    String16 scriptId = protocol::string16FromInteger(frame->GetScriptId());
     String16 sourceName;
     v8::Local<v8::String> sourceNameValue(frame->GetScriptNameOrSourceURL());
     if (!sourceNameValue.IsEmpty())
@@ -256,9 +256,9 @@ String16 V8StackTraceImpl::toString() const
         stackTrace.append(" (");
         stackTrace.append(frame.sourceURL());
         stackTrace.append(':');
-        stackTrace.appendNumber(frame.lineNumber());
+        stackTrace.append(protocol::string16FromInteger(frame.lineNumber()));
         stackTrace.append(':');
-        stackTrace.appendNumber(frame.columnNumber());
+        stackTrace.append(protocol::string16FromInteger(frame.columnNumber()));
         stackTrace.append(')');
     }
     return stackTrace.toString();