DevTools: migrate from OwnPtr to std::unique_ptr for inspector protocol classes.

third_party/WebKit/Source/platform/inspector_protocol/Parser.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/inspector_protocol/Parser.h"
 
 #include "platform/inspector_protocol/String16.h"
 #include "platform/inspector_protocol/Values.h"
 
 namespace blink {
@@ skipping 338 matching lines @@
     if (start > end)
         return false;
     String16Builder buffer;
     buffer.reserveCapacity(end - start);
     if (!decodeString(start, end, &buffer))
         return false;
     *output = buffer.toString();
     return true;
 }
 
-PassOwnPtr<Value> buildValue(const UChar* start, const UChar* end, const UChar** valueTokenEnd, int depth)
+std::unique_ptr<Value> buildValue(const UChar* start, const UChar* end, const UChar** valueTokenEnd, int depth)
 {
     if (depth > stackLimit)
         return nullptr;
 
-    OwnPtr<Value> result;
+    std::unique_ptr<Value> result;
     const UChar* tokenStart;
     const UChar* tokenEnd;
     Token token = parseToken(start, end, &tokenStart, &tokenEnd);
     switch (token) {
     case InvalidToken:
         return nullptr;
     case NullToken:
         result = Value::null();
         break;
     case BoolTrue:
@@ skipping 12 matching lines @@
     }
     case StringLiteral: {
         String16 value;
         bool ok = decodeString(tokenStart + 1, tokenEnd - 1, &value);
         if (!ok)
             return nullptr;
         result = StringValue::create(value);
         break;
     }
     case ArrayBegin: {
-        OwnPtr<ListValue> array = ListValue::create();
+        std::unique_ptr<ListValue> array = ListValue::create();
         start = tokenEnd;
         token = parseToken(start, end, &tokenStart, &tokenEnd);
         while (token != ArrayEnd) {
-            OwnPtr<Value> arrayNode = buildValue(start, end, &tokenEnd, depth + 1);
+            std::unique_ptr<Value> arrayNode = buildValue(start, end, &tokenEnd, depth + 1);
             if (!arrayNode)
                 return nullptr;
             array->pushValue(std::move(arrayNode));
 
             // After a list value, we expect a comma or the end of the list.
             start = tokenEnd;
             token = parseToken(start, end, &tokenStart, &tokenEnd);
             if (token == ListSeparator) {
                 start = tokenEnd;
                 token = parseToken(start, end, &tokenStart, &tokenEnd);
                 if (token == ArrayEnd)
                     return nullptr;
             } else if (token != ArrayEnd) {
                 // Unexpected value after list value. Bail out.
                 return nullptr;
             }
         }
         if (token != ArrayEnd)
             return nullptr;
         result = std::move(array);
         break;
     }
     case ObjectBegin: {
-        OwnPtr<DictionaryValue> object = DictionaryValue::create();
+        std::unique_ptr<DictionaryValue> object = DictionaryValue::create();
         start = tokenEnd;
         token = parseToken(start, end, &tokenStart, &tokenEnd);
         while (token != ObjectEnd) {
             if (token != StringLiteral)
                 return nullptr;
             String16 key;
             if (!decodeString(tokenStart + 1, tokenEnd - 1, &key))
                 return nullptr;
             start = tokenEnd;
 
             token = parseToken(start, end, &tokenStart, &tokenEnd);
             if (token != ObjectPairSeparator)
                 return nullptr;
             start = tokenEnd;
 
-            OwnPtr<Value> value = buildValue(start, end, &tokenEnd, depth + 1);
+            std::unique_ptr<Value> value = buildValue(start, end, &tokenEnd, depth + 1);
             if (!value)
                 return nullptr;
             object->setValue(key, std::move(value));
             start = tokenEnd;
 
             // After a key/value pair, we expect a comma or the end of the
             // object.
             token = parseToken(start, end, &tokenStart, &tokenEnd);
             if (token == ListSeparator) {
                 start = tokenEnd;
@@ skipping 13 matching lines @@
 
     default:
         // We got a token that's not a value.
         return nullptr;
     }
 
     skipWhitespaceAndComments(tokenEnd, end, valueTokenEnd);
     return result;
 }
 
-PassOwnPtr<Value> parseJSONInternal(const UChar* start, unsigned length)
+std::unique_ptr<Value> parseJSONInternal(const UChar* start, unsigned length)
 {
     const UChar* end = start + length;
     const UChar *tokenEnd;
-    OwnPtr<Value> value = buildValue(start, end, &tokenEnd, 0);
+    std::unique_ptr<Value> value = buildValue(start, end, &tokenEnd, 0);
     if (!value || tokenEnd != end)
         return nullptr;
     return value;
 }
 
 } // anonymous namespace
 
-PassOwnPtr<Value> parseJSON(const String16& json)
+std::unique_ptr<Value> parseJSON(const String16& json)
 {
     if (json.isEmpty())
         return nullptr;
     return parseJSONInternal(json.characters16(), json.length());
 }
 
 } // namespace protocol
 } // namespace blink