Pass SessionConfig by reference instead of pointer.

remoting/client/rectangle_update_decoder.cc

Index: remoting/client/rectangle_update_decoder.cc
diff --git a/remoting/client/rectangle_update_decoder.cc b/remoting/client/rectangle_update_decoder.cc
index aabbecfb5569cc913c5dd956cdf438594e477313..c6426a84e5ef302f9eaac5d85c947d7a497775af 100644
--- a/remoting/client/rectangle_update_decoder.cc
+++ b/remoting/client/rectangle_update_decoder.cc
@@ -52,12 +52,12 @@ RectangleUpdateDecoder::RectangleUpdateDecoder(MessageLoop* message_loop,
 RectangleUpdateDecoder::~RectangleUpdateDecoder() {
 }
 
-void RectangleUpdateDecoder::Initialize(const SessionConfig* config) {
-  initial_screen_size_ = gfx::Size(config->initial_resolution().width,
-                                   config->initial_resolution().height);
+void RectangleUpdateDecoder::Initialize(const SessionConfig& config) {
+  initial_screen_size_ = gfx::Size(config.initial_resolution().width,
+                                   config.initial_resolution().height);
 
   // Initialize decoder based on the selected codec.
-  ChannelConfig::Codec codec = config->video_config().codec;
+  ChannelConfig::Codec codec = config.video_config().codec;
   if (codec == ChannelConfig::CODEC_VERBATIM) {
     TraceContext::tracer()->PrintString("Creating Verbatim decoder.");
     decoder_.reset(DecoderRowBased::CreateVerbatimDecoder());