Rename WindowTreeHost functions to indicate pixels/dips.

ash/host/ash_window_tree_host_unified.cc

Index: ash/host/ash_window_tree_host_unified.cc
diff --git a/ash/host/ash_window_tree_host_unified.cc b/ash/host/ash_window_tree_host_unified.cc
index 550a13d6098a5b9f8e18eeb0550408d8db1f5e2d..d0a10b924a28410adec6731c0ff008cf5b69746b 100644
--- a/ash/host/ash_window_tree_host_unified.cc
+++ b/ash/host/ash_window_tree_host_unified.cc
@@ -80,7 +80,7 @@ void AshWindowTreeHostUnified::RegisterMirroringHost(
 
 void AshWindowTreeHostUnified::SetBounds(const gfx::Rect& bounds) {
   AshWindowTreeHostPlatform::SetBounds(bounds);
-  OnHostResized(bounds.size());
+  OnHostResizedInPixel(bounds.size());
 }
 
 void AshWindowTreeHostUnified::SetCursorNative(gfx::NativeCursor cursor) {
@@ -95,7 +95,7 @@ void AshWindowTreeHostUnified::OnCursorVisibilityChangedNative(bool show) {
 
 void AshWindowTreeHostUnified::OnBoundsChanged(const gfx::Rect& bounds) {
   if (platform_window())
-    OnHostResized(bounds.size());
+    OnHostResizedInPixel(bounds.size());
 }
 
 void AshWindowTreeHostUnified::OnWindowDestroying(aura::Window* window) {