DevTools: generate string16-based handlers for v8_inspector.

third_party/WebKit/Source/platform/inspector_protocol/TypeBuilder_h.template

Index: third_party/WebKit/Source/platform/inspector_protocol/TypeBuilder_h.template
diff --git a/third_party/WebKit/Source/platform/inspector_protocol/TypeBuilder_h.template b/third_party/WebKit/Source/platform/inspector_protocol/TypeBuilder_h.template
index d81e08cb0ae80aacabe603c27a0708aa40c36e00..ea3a5799e06a2309be96e3dc5a750570d4c83857 100644
--- a/third_party/WebKit/Source/platform/inspector_protocol/TypeBuilder_h.template
+++ b/third_party/WebKit/Source/platform/inspector_protocol/TypeBuilder_h.template
@@ -11,16 +11,17 @@
 #include "platform/inspector_protocol/Array.h"
 #include "platform/inspector_protocol/ErrorSupport.h"
 #include "platform/inspector_protocol/Maybe.h"
+#include "platform/inspector_protocol/String16.h"
 #include "platform/inspector_protocol/Values.h"
 #include "platform/inspector_protocol/ValueConversions.h"
 #include "wtf/Assertions.h"
 #include "wtf/PassOwnPtr.h"
-#include "wtf/text/StringBuilder.h"
-#include "wtf/text/WTFString.h"
 
 namespace blink {
 namespace protocol {
 
+using ErrorString = String16;
+
 class PLATFORM_EXPORT Object {
 public:
     static PassOwnPtr<Object> parse(protocol::Value* value, ErrorSupport* errors);
@@ -205,4 +206,6 @@ private:
 } // namespace protocol
 } // namespace blink
 
+using blink::protocol::ErrorString;
+
 #endif // !defined({{class_name}}_h)