remoting_me2me_host: Heap-allocate a 4K buffer.

remoting/host/remoting_me2me_host.cc

Index: remoting/host/remoting_me2me_host.cc
diff --git a/remoting/host/remoting_me2me_host.cc b/remoting/host/remoting_me2me_host.cc
index fb6907c3f0e8c53c70f62f93f1d6fb0ca70076a2..c6c04eb62f14016eaaca9bcc740c6805a5f4d39f 100644
--- a/remoting/host/remoting_me2me_host.cc
+++ b/remoting/host/remoting_me2me_host.cc
@@ -488,10 +488,11 @@ bool HostProcess::InitWithCommandLine(const base::CommandLine* cmd_line) {
 
     // Read config from stdin if necessary.
     if (host_config_path_ == base::FilePath(kStdinConfigPath)) {
-      char buf[4096];
+      const size_t kBufferSize = 4096;
+      scoped_ptr<char[]> buf(new char[kBufferSize]);
       size_t len;
-      while ((len = fread(buf, 1, sizeof(buf), stdin)) > 0) {
-        host_config_.append(buf, len);
+      while ((len = fread(buf.get(), 1, kBufferSize, stdin)) > 0) {
+        host_config_.append(buf.get(), len);
       }
     }
   } else {