Rename ClientDimensions to ClientResolution and add pixel-size and DPI fields.

remoting/host/resizing_host_observer_unittest.cc

Index: remoting/host/resizing_host_observer_unittest.cc
diff --git a/remoting/host/resizing_host_observer_unittest.cc b/remoting/host/resizing_host_observer_unittest.cc
index 5e1d51991abf55be69c3800280042becf84f1823..7944a147c9861acf0972d84500385465efcf0afc 100644
--- a/remoting/host/resizing_host_observer_unittest.cc
+++ b/remoting/host/resizing_host_observer_unittest.cc
@@ -74,7 +74,8 @@ class ResizingHostObserverTest : public testing::Test {
   }
 
   SkISize GetBestSize(const SkISize& client_size) {
-    resizing_host_observer_->OnClientDimensionsChanged("", client_size);
+    resizing_host_observer_->OnClientResolutionChanged(
+        "", client_size, SkIPoint());
     return desktop_resizer_->GetCurrentSize();
   }