[DevTools] Migrate v8_inspector/public from String16 to String{View,Buffer}.

third_party/WebKit/Source/platform/v8_inspector/public/V8StackTrace.h

Index: third_party/WebKit/Source/platform/v8_inspector/public/V8StackTrace.h
diff --git a/third_party/WebKit/Source/platform/v8_inspector/public/V8StackTrace.h b/third_party/WebKit/Source/platform/v8_inspector/public/V8StackTrace.h
index ac68c1b0e9ea0a109a0818a0c46352dd79cb0924..a7f9b669058a16be18abc45475245002a339df5a 100644
--- a/third_party/WebKit/Source/platform/v8_inspector/public/V8StackTrace.h
+++ b/third_party/WebKit/Source/platform/v8_inspector/public/V8StackTrace.h
@@ -5,7 +5,8 @@
 #ifndef V8StackTrace_h
 #define V8StackTrace_h
 
-#include "platform/inspector_protocol/InspectorProtocol.h"
+#include "platform/v8_inspector/public/StringBuffer.h"
+#include "platform/v8_inspector/public/StringView.h"
 #include "platform/v8_inspector/public/protocol/Runtime.h"
 
 #include <v8.h>
@@ -15,15 +16,15 @@ namespace v8_inspector {
 class V8StackTrace {
 public:
     virtual bool isEmpty() const = 0;
-    virtual String16 topSourceURL() const = 0;
+    virtual StringView topSourceURL() const = 0;
     virtual int topLineNumber() const = 0;
     virtual int topColumnNumber() const = 0;
-    virtual String16 topScriptId() const = 0;
-    virtual String16 topFunctionName() const = 0;
+    virtual StringView topScriptId() const = 0;
+    virtual StringView topFunctionName() const = 0;
 
     virtual ~V8StackTrace() { }
     virtual std::unique_ptr<blink::protocol::Runtime::API::StackTrace> buildInspectorObject() const = 0;
-    virtual String16 toString() const = 0;
+    virtual std::unique_ptr<StringBuffer> toString() const = 0;
 
     // Safe to pass between threads, drops async chain.
     virtual std::unique_ptr<V8StackTrace> clone() = 0;