Rename WindowTreeHost functions to indicate pixels/dips.

ui/aura/window_tree_host.cc

Index: ui/aura/window_tree_host.cc
diff --git a/ui/aura/window_tree_host.cc b/ui/aura/window_tree_host.cc
index ef626257d735d2d0a96387217a894573dfe41d8b..c4cdb792a806e8eccf493a10185d9fbaa93e74ff 100644
--- a/ui/aura/window_tree_host.cc
+++ b/ui/aura/window_tree_host.cc
@@ -61,7 +61,7 @@ WindowTreeHost* WindowTreeHost::GetForAcceleratedWidget(
 
 void WindowTreeHost::InitHost() {
   InitCompositor();
-  UpdateRootWindowSize(GetBounds().size());
+  UpdateRootWindowSizeInPixel(GetBounds().size());
   Env::GetInstance()->NotifyHostInitialized(this);
   window()->Show();
 }
@@ -96,7 +96,7 @@ gfx::Transform WindowTreeHost::GetRootTransform() const {
 
 void WindowTreeHost::SetRootTransform(const gfx::Transform& transform) {
   window()->SetTransform(transform);
-  UpdateRootWindowSize(GetBounds().size());
+  UpdateRootWindowSizeInPixel(GetBounds().size());
 }
 
 gfx::Transform WindowTreeHost::GetInverseRootTransform() const {
@@ -107,18 +107,20 @@ gfx::Transform WindowTreeHost::GetInverseRootTransform() const {
   return invert;
 }
 
-void WindowTreeHost::SetOutputSurfacePadding(const gfx::Insets& padding) {
-  if (output_surface_padding_ == padding)
+void WindowTreeHost::SetOutputSurfacePaddingInPixel(
+    const gfx::Insets& padding_in_pixel) {
+  if (output_surface_padding_in_pixel_ == padding_in_pixel)
     return;
 
-  output_surface_padding_ = padding;
-  OnHostResized(GetBounds().size());
+  output_surface_padding_in_pixel_ = padding_in_pixel;
+  OnHostResizedInPixel(GetBounds().size());
 }
 
-void WindowTreeHost::UpdateRootWindowSize(const gfx::Size& host_size) {
-  gfx::Rect bounds(output_surface_padding_.left(),
-                   output_surface_padding_.top(), host_size.width(),
-                   host_size.height());
+void WindowTreeHost::UpdateRootWindowSizeInPixel(
+    const gfx::Size& host_size_in_pixel) {
+  gfx::Rect bounds(output_surface_padding_in_pixel_.left(),
+                   output_surface_padding_in_pixel_.top(),
+                   host_size_in_pixel.width(), host_size_in_pixel.height());
   float scale_factor = ui::GetDeviceScaleFactor(window()->layer());
   gfx::RectF new_bounds =
       gfx::ScaleRect(gfx::RectF(bounds), 1.0f / scale_factor);
@@ -126,25 +128,27 @@ void WindowTreeHost::UpdateRootWindowSize(const gfx::Size& host_size) {
   window()->SetBounds(gfx::ToEnclosingRect(new_bounds));
 }
 
-void WindowTreeHost::ConvertPointToNativeScreen(gfx::Point* point) const {
-  ConvertPointToHost(point);
-  gfx::Point location = GetLocationOnNativeScreen();
+void WindowTreeHost::ConvertPointFromDIPToNativeScreen(
+    gfx::Point* point) const {
+  ConvertPointFromDIPToHost(point);
+  gfx::Point location = GetLocationOnNativeScreenInPixel();
   point->Offset(location.x(), location.y());
 }
 
-void WindowTreeHost::ConvertPointFromNativeScreen(gfx::Point* point) const {
-  gfx::Point location = GetLocationOnNativeScreen();
+void WindowTreeHost::ConvertPointFromNativeScreenToDIP(
+    gfx::Point* point) const {
+  gfx::Point location = GetLocationOnNativeScreenInPixel();
   point->Offset(-location.x(), -location.y());
-  ConvertPointFromHost(point);
+  ConvertPointFromHostToDIP(point);
 }
 
-void WindowTreeHost::ConvertPointToHost(gfx::Point* point) const {
+void WindowTreeHost::ConvertPointFromDIPToHost(gfx::Point* point) const {
   auto point_3f = gfx::Point3F(gfx::PointF(*point));
   GetRootTransform().TransformPoint(&point_3f);
   *point = gfx::ToFlooredPoint(point_3f.AsPointF());
 }
 
-void WindowTreeHost::ConvertPointFromHost(gfx::Point* point) const {
+void WindowTreeHost::ConvertPointFromHostToDIP(gfx::Point* point) const {
   auto point_3f = gfx::Point3F(gfx::PointF(*point));
   GetInverseRootTransform().TransformPoint(&point_3f);
   *point = gfx::ToFlooredPoint(point_3f.AsPointF());
@@ -172,16 +176,18 @@ void WindowTreeHost::OnCursorVisibilityChanged(bool show) {
   OnCursorVisibilityChangedNative(show);
 }
 
-void WindowTreeHost::MoveCursorTo(const gfx::Point& location_in_dip) {
+void WindowTreeHost::MoveCursorToLocationInDIP(
+    const gfx::Point& location_in_dip) {
   gfx::Point host_location(location_in_dip);
-  ConvertPointToHost(&host_location);
+  ConvertPointFromDIPToHost(&host_location);
   MoveCursorToInternal(location_in_dip, host_location);
 }
 
-void WindowTreeHost::MoveCursorToHostLocation(const gfx::Point& host_location) {
-  gfx::Point root_location(host_location);
-  ConvertPointFromHost(&root_location);
-  MoveCursorToInternal(root_location, host_location);
+void WindowTreeHost::MoveCursorToHostLocationInPixel(
+    const gfx::Point& host_location_in_pixel) {
+  gfx::Point root_location(host_location_in_pixel);
+  ConvertPointFromHostToDIP(&root_location);
+  MoveCursorToInternal(root_location, host_location_in_pixel);
 }
 
 ui::InputMethod* WindowTreeHost::GetInputMethod() {
@@ -268,18 +274,19 @@ void WindowTreeHost::OnAcceleratedWidgetAvailable() {
                                kWindowTreeHostForAcceleratedWidget, this));
 }
 
-void WindowTreeHost::OnHostMoved(const gfx::Point& new_location) {
-  TRACE_EVENT1("ui", "WindowTreeHost::OnHostMoved",
-               "origin", new_location.ToString());
+void WindowTreeHost::OnHostMovedInPixel(
+    const gfx::Point& new_location_in_pixel) {
+  TRACE_EVENT1("ui", "WindowTreeHost::OnHostMovedInPixel", "origin",
+               new_location_in_pixel.ToString());
 
   for (WindowTreeHostObserver& observer : observers_)
-    observer.OnHostMoved(this, new_location);
+    observer.OnHostMovedInPixel(this, new_location_in_pixel);
 }
 
-void WindowTreeHost::OnHostResized(const gfx::Size& new_size) {
-  gfx::Size adjusted_size(new_size);
-  adjusted_size.Enlarge(output_surface_padding_.width(),
-                        output_surface_padding_.height());
+void WindowTreeHost::OnHostResizedInPixel(const gfx::Size& new_size_in_pixel) {
+  gfx::Size adjusted_size(new_size_in_pixel);
+  adjusted_size.Enlarge(output_surface_padding_in_pixel_.width(),
+                        output_surface_padding_in_pixel_.height());
   // The compositor should have the same size as the native root window host.
   // Get the latest scale from display because it might have been changed.
   compositor_->SetScaleAndSize(GetDeviceScaleFactorFromDisplay(window()),
@@ -288,7 +295,7 @@ void WindowTreeHost::OnHostResized(const gfx::Size& new_size) {
   gfx::Size layer_size = GetBounds().size();
   // The layer, and the observers should be notified of the
   // transformed size of the root window.
-  UpdateRootWindowSize(layer_size);
+  UpdateRootWindowSizeInPixel(layer_size);
   for (WindowTreeHostObserver& observer : observers_)
     observer.OnHostResized(this);
 }
@@ -329,7 +336,7 @@ ui::EventProcessor* WindowTreeHost::GetEventProcessor() {
 void WindowTreeHost::MoveCursorToInternal(const gfx::Point& root_location,
                                           const gfx::Point& host_location) {
   last_cursor_request_position_in_host_ = host_location;
-  MoveCursorToNative(host_location);
+  MoveCursorToNativeInPixel(host_location);
   client::CursorClient* cursor_client = client::GetCursorClient(window());
   if (cursor_client) {
     const display::Display& display =