Allow shaped-desktop hosts to send shape only when it changes.

remoting/codec/codec_test.cc

Index: remoting/codec/codec_test.cc
diff --git a/remoting/codec/codec_test.cc b/remoting/codec/codec_test.cc
index 51b52f03ee2358b8073051ba330e61d5bffafde2..2ed3da213555bedd2742ab8bc5df4076cfb6de98 100644
--- a/remoting/codec/codec_test.cc
+++ b/remoting/codec/codec_test.cc
@@ -61,7 +61,7 @@ class VideoDecoderTester {
         view_size_(view_size),
         strict_(false),
         decoder_(decoder),
-        frame_(NULL) {
+        frame_(nullptr) {
     image_data_.reset(new uint8[
         view_size_.width() * view_size_.height() * kBytesPerPixel]);
     EXPECT_TRUE(image_data_.get());
@@ -205,10 +205,7 @@ class VideoDecoderTester {
 // the message to other subprograms for validaton.
 class VideoEncoderTester {
  public:
-  VideoEncoderTester()
-      : decoder_tester_(NULL),
-        data_available_(0) {
-  }
+  VideoEncoderTester() : decoder_tester_(nullptr), data_available_(0) {}
 
   ~VideoEncoderTester() {
     EXPECT_GT(data_available_, 0);