Use nullptr_t for RefPtr, PassRefPtr and RawPtr.

Source/core/inspector/InspectorDebuggerAgent.cpp

Index: Source/core/inspector/InspectorDebuggerAgent.cpp
diff --git a/Source/core/inspector/InspectorDebuggerAgent.cpp b/Source/core/inspector/InspectorDebuggerAgent.cpp
index 08edc7a2dbcc20a49ef5d7d2a6e9b1736449cd5f..b343c5e2115aa4ba0f551db75e2334bdb5c7266d 100644
--- a/Source/core/inspector/InspectorDebuggerAgent.cpp
+++ b/Source/core/inspector/InspectorDebuggerAgent.cpp
@@ -260,7 +260,7 @@ bool InspectorDebuggerAgent::runningNestedMessageLoop()
 void InspectorDebuggerAgent::addMessageToConsole(MessageSource source, MessageType type)
 {
     if (source == ConsoleAPIMessageSource && type == AssertMessageType && scriptDebugServer().pauseOnExceptionsState() != ScriptDebugServer::DontPauseOnExceptions)
-        breakProgram(InspectorFrontend::Debugger::Reason::Assert, 0);
+        breakProgram(InspectorFrontend::Debugger::Reason::Assert, nullptr);
 }
 
 void InspectorDebuggerAgent::addMessageToConsole(MessageSource source, MessageType type, MessageLevel, const String&, PassRefPtr<ScriptCallStack>, unsigned long)
@@ -553,16 +553,16 @@ PassRefPtr<TypeBuilder::Debugger::Location> InspectorDebuggerAgent::resolveBreak
 {
     ScriptsMap::iterator scriptIterator = m_scripts.find(scriptId);
     if (scriptIterator == m_scripts.end())
-        return 0;
+        return nullptr;
     Script& script = scriptIterator->value;
     if (breakpoint.lineNumber < script.startLine || script.endLine < breakpoint.lineNumber)
-        return 0;
+        return nullptr;
 
     int actualLineNumber;
     int actualColumnNumber;
     String debugServerBreakpointId = scriptDebugServer().setBreakpoint(scriptId, breakpoint, &actualLineNumber, &actualColumnNumber, false);
     if (debugServerBreakpointId.isEmpty())
-        return 0;
+        return nullptr;
 
     m_serverBreakpoints.set(debugServerBreakpointId, std::make_pair(breakpointId, source));
 
@@ -582,10 +582,10 @@ PassRefPtr<TypeBuilder::Debugger::Location> InspectorDebuggerAgent::resolveBreak
 static PassRefPtr<JSONObject> scriptToInspectorObject(ScriptObject scriptObject)
 {
     if (scriptObject.hasNoValue())
-        return 0;
+        return nullptr;
     RefPtr<JSONValue> value = scriptObject.toJSONValue(scriptObject.scriptState());
     if (!value)
-        return 0;
+        return nullptr;
     return value->asObject();
 }
 
@@ -1057,18 +1057,18 @@ PassRefPtr<Array<CallFrame> > InspectorDebuggerAgent::currentCallFrames()
 PassRefPtr<StackTrace> InspectorDebuggerAgent::currentAsyncStackTrace()
 {
     if (!m_pausedScriptState || !m_asyncCallStackTracker.isEnabled())
-        return 0;
+        return nullptr;
     InjectedScript injectedScript = m_injectedScriptManager->injectedScriptFor(m_pausedScriptState);
     if (injectedScript.hasNoValue()) {
         ASSERT_NOT_REACHED();
-        return 0;
+        return nullptr;
     }
     const AsyncCallStackTracker::AsyncCallChain* chain = m_asyncCallStackTracker.currentAsyncCallChain();
     if (!chain)
-        return 0;
+        return nullptr;
     const AsyncCallStackTracker::AsyncCallStackVector& callStacks = chain->callStacks();
     if (callStacks.isEmpty())
-        return 0;
+        return nullptr;
     RefPtr<StackTrace> result;
     int asyncOrdinal = callStacks.size();
     for (AsyncCallStackTracker::AsyncCallStackVector::const_reverse_iterator it = callStacks.rbegin(); it != callStacks.rend(); ++it) {
@@ -1243,7 +1243,7 @@ bool InspectorDebuggerAgent::assertPaused(ErrorString* errorString)
 void InspectorDebuggerAgent::clearBreakDetails()
 {
     m_breakReason = InspectorFrontend::Debugger::Reason::Other;
-    m_breakAuxData = 0;
+    m_breakAuxData = nullptr;
 }
 
 void InspectorDebuggerAgent::setBreakpoint(const String& scriptId, int lineNumber, int columnNumber, BreakpointSource source, const String& condition)