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

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

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "platform/v8_inspector/V8StackTraceImpl.h"
 
 #include "platform/v8_inspector/V8Debugger.h"
 #include "platform/v8_inspector/V8StringUtil.h"
 
 #include <v8-debug.h>
@@ skipping 167 matching lines @@
     , m_description(description)
     , m_parent(std::move(parent))
 {
     m_frames.swap(frames);
 }
 
 V8StackTraceImpl::~V8StackTraceImpl()
 {
 }
 
-String16 V8StackTraceImpl::topSourceURL() const
+StringView V8StackTraceImpl::topSourceURL() const
 {
     DCHECK(m_frames.size());
-    return m_frames[0].m_scriptName;
+    return toStringView(m_frames[0].m_scriptName);
 }
 
 int V8StackTraceImpl::topLineNumber() const
 {
     DCHECK(m_frames.size());
     return m_frames[0].m_lineNumber;
 }
 
 int V8StackTraceImpl::topColumnNumber() const
 {
     DCHECK(m_frames.size());
     return m_frames[0].m_columnNumber;
 }
 
-String16 V8StackTraceImpl::topFunctionName() const
+StringView V8StackTraceImpl::topFunctionName() const
 {
     DCHECK(m_frames.size());
-    return m_frames[0].m_functionName;
+    return toStringView(m_frames[0].m_functionName);
 }
 
-String16 V8StackTraceImpl::topScriptId() const
+StringView V8StackTraceImpl::topScriptId() const
 {
     DCHECK(m_frames.size());
-    return m_frames[0].m_scriptId;
+    return toStringView(m_frames[0].m_scriptId);
 }
 
 std::unique_ptr<protocol::Runtime::StackTrace> V8StackTraceImpl::buildInspectorObjectImpl() const
 {
     std::unique_ptr<protocol::Array<protocol::Runtime::CallFrame>> frames = protocol::Array<protocol::Runtime::CallFrame>::create();
     for (size_t i = 0; i < m_frames.size(); i++)
         frames->addItem(m_frames.at(i).buildInspectorObject());
 
     std::unique_ptr<protocol::Runtime::StackTrace> stackTrace = protocol::Runtime::StackTrace::create()
         .setCallFrames(std::move(frames)).build();
@@ skipping 12 matching lines @@
     if (!fullChain || !fullChain->m_parent)
         return nullptr;
     return fullChain->m_parent->buildInspectorObjectImpl();
 }
 
 std::unique_ptr<protocol::Runtime::API::StackTrace> V8StackTraceImpl::buildInspectorObject() const
 {
     return buildInspectorObjectImpl();
 }
 
-String16 V8StackTraceImpl::toString() const
+std::unique_ptr<StringBuffer> V8StackTraceImpl::toString() const
 {
     String16Builder stackTrace;
     for (size_t i = 0; i < m_frames.size(); ++i) {
         const Frame& frame = m_frames[i];
         stackTrace.append("\n    at " + (frame.functionName().length() ? frame.functionName() : "(anonymous function)"));
         stackTrace.append(" (");
         stackTrace.append(frame.sourceURL());
         stackTrace.append(':');
         stackTrace.append(String16::fromInteger(frame.lineNumber()));
         stackTrace.append(':');
         stackTrace.append(String16::fromInteger(frame.columnNumber()));
         stackTrace.append(')');
     }
-    return stackTrace.toString();
+    String16 string = stackTrace.toString();
+    return StringBufferImpl::adopt(string);
 }
 
 } // namespace v8_inspector