Add sandbox support for process memory limits

sandbox/win/src/job.h

Index: sandbox/win/src/job.h
diff --git a/sandbox/win/src/job.h b/sandbox/win/src/job.h
index 7c215efc8e63f87e97bb12fa7916437c44602d9c..1b107d3b84d6c2499b648a8e4a76318d57898648 100644
--- a/sandbox/win/src/job.h
+++ b/sandbox/win/src/job.h
@@ -17,7 +17,7 @@ namespace sandbox {
 //   job.AssignProcessToJob(process_handle);
 class Job {
  public:
-  Job() : job_handle_(NULL) { }
+  Job() : job_handle_(NULL), process_memory_limit_(0) { }
 
   ~Job();
 
@@ -33,6 +33,8 @@ class Job {
              const wchar_t* job_name,
              DWORD ui_exceptions);
 
+  DWORD SetProcessMemoryLimit(size_t limit);
+
   // Assigns the process referenced by process_handle to the job.
   // If the function succeeds, the return value is ERROR_SUCCESS. If the
   // function fails, the return value is the win32 error code corresponding to
@@ -54,6 +56,8 @@ class Job {
  private:
   // Handle to the job referenced by the object.
   HANDLE job_handle_;
+  // Per-process memory limit for each process in the job.
+  size_t process_memory_limit_;
 
   DISALLOW_COPY_AND_ASSIGN(Job);
 };