Bug 1264811 - Use a const reference and a default constructor to simplify the macOS sandbox code; r=haik

MozReview-Commit-ID: Dtspj7fL9t7

--HG--
extra : rebase_source : 4b85a1d7bd8ad393f032e67ebff0888bcfdd5447

security/sandbox/mac/Sandbox.h

@@ -41,18 +41,8 @@ typedef struct _MacSandboxInfo {
   _MacSandboxInfo()
     : type(MacSandboxType_Default), level(0), hasFilePrivileges(false),
       shouldLog(true) {}
-  _MacSandboxInfo(const struct _MacSandboxInfo& other)
-    : type(other.type), level(other.level),
-      hasFilePrivileges(other.hasFilePrivileges),
-      hasSandboxedProfile(other.hasSandboxedProfile),
-      pluginInfo(other.pluginInfo),
-      appPath(other.appPath), appBinaryPath(other.appBinaryPath),
-      appDir(other.appDir), appTempDir(other.appTempDir),
-      profileDir(other.profileDir), debugWriteDir(other.debugWriteDir),
-      testingReadPath1(other.testingReadPath1),
-      testingReadPath2(other.testingReadPath2),
-      testingReadPath3(other.testingReadPath3),
-      testingReadPath4(other.testingReadPath4), shouldLog(other.shouldLog) {}
+  _MacSandboxInfo(const struct _MacSandboxInfo& other) = default;
+
   MacSandboxType type;
   int32_t level;
   bool hasFilePrivileges;
@@ -75,7 +65,7 @@ typedef struct _MacSandboxInfo {
 
 namespace mozilla {
 
-bool StartMacSandbox(MacSandboxInfo aInfo, std::string &aErrorMessage);
+bool StartMacSandbox(MacSandboxInfo const &aInfo, std::string &aErrorMessage);
 
 } // namespace mozilla
 

security/sandbox/mac/Sandbox.mm

@@ -124,7 +124,7 @@ OSXVersion::GetVersionNumber()
 
 namespace mozilla {
 
-bool StartMacSandbox(MacSandboxInfo aInfo, std::string &aErrorMessage)
+bool StartMacSandbox(MacSandboxInfo const &aInfo, std::string &aErrorMessage)
 {
   std::vector<const char *> params;
   char *profile = NULL;