Replace PxPosition with Offset

Relnote: "In order to consolidate the
number of classes used to represent
positioning information, standardize
on usage of the Offset class instead
of PxPosition. This provides the benefits
of an inline class to leverage a long
to pack 2 float values to represent x
and y offsets represented as floats."

Bug: 157948366
Test: re-ran compose tests
Change-Id: I3ad983207bc37af20afac03e2cd09b4240777687

diff --git a/ui/ui-material/src/androidTest/java/androidx/ui/material/DrawerTest.kt b/ui/ui-material/src/androidTest/java/androidx/ui/material/DrawerTest.kt
index c5fb2a0..55bd392 100644
--- a/ui/ui-material/src/androidTest/java/androidx/ui/material/DrawerTest.kt
+++ b/ui/ui-material/src/androidTest/java/androidx/ui/material/DrawerTest.kt

@@ -36,7 +36,7 @@
 import androidx.ui.test.sendClick
 import androidx.ui.unit.IntPx
 import androidx.ui.unit.IntPxSize
-import androidx.ui.unit.PxPosition
+import androidx.ui.geometry.Offset
 import androidx.ui.unit.dp
 import androidx.ui.unit.height
 import androidx.ui.unit.width
@@ -59,11 +59,11 @@
 
     @Test
     fun modalDrawer_testOffset_whenOpened() {
-        var position: PxPosition? = null
+        var position: Offset? = null
         composeTestRule.setMaterialContent {
             ModalDrawerLayout(DrawerState.Opened, {}, drawerContent = {
                 Box(Modifier.fillMaxSize().onPositioned { coords: LayoutCoordinates ->
-                    position = coords.localToGlobal(PxPosition.Origin)
+                    position = coords.localToGlobal(Offset.Zero)
                 })
             }, bodyContent = emptyContent())
         }
@@ -74,11 +74,11 @@
 
     @Test
     fun modalDrawer_testOffset_whenClosed() {
-        var position: PxPosition? = null
+        var position: Offset? = null
         composeTestRule.setMaterialContent {
             ModalDrawerLayout(DrawerState.Closed, {}, drawerContent = {
                 Box(Modifier.fillMaxSize().onPositioned { coords: LayoutCoordinates ->
-                    position = coords.localToGlobal(PxPosition.Origin)
+                    position = coords.localToGlobal(Offset.Zero)
                 })
             }, bodyContent = emptyContent())
         }
@@ -108,11 +108,11 @@
 
     @Test
     fun bottomDrawer_testOffset_whenOpened() {
-        var position: PxPosition? = null
+        var position: Offset? = null
         composeTestRule.setMaterialContent {
             BottomDrawerLayout(DrawerState.Opened, {}, drawerContent = {
                 Box(Modifier.fillMaxSize().onPositioned { coords: LayoutCoordinates ->
-                    position = coords.localToGlobal(PxPosition.Origin)
+                    position = coords.localToGlobal(Offset.Zero)
                 })
             }, bodyContent = emptyContent())
         }
@@ -128,11 +128,11 @@
 
     @Test
     fun bottomDrawer_testOffset_whenClosed() {
-        var position: PxPosition? = null
+        var position: Offset? = null
         composeTestRule.setMaterialContent {
             BottomDrawerLayout(DrawerState.Closed, {}, drawerContent = {
                 Box(Modifier.fillMaxSize().onPositioned { coords: LayoutCoordinates ->
-                    position = coords.localToGlobal(PxPosition.Origin)
+                    position = coords.localToGlobal(Offset.Zero)
                 })
             }, bodyContent = emptyContent())
         }
@@ -154,7 +154,7 @@
                 drawerContent = {
                     Box(
                         Modifier.fillMaxSize().onPositioned { info: LayoutCoordinates ->
-                            val pos = info.localToGlobal(PxPosition.Origin)
+                            val pos = info.localToGlobal(Offset.Zero)
                             if (pos.x == 0.0f) {
                                 // If fully opened, mark the openedLatch if present
                                 openedLatch?.countDown()
@@ -227,7 +227,7 @@
         findByTag("Drawer").doGesture {
             val left = 1.0f
             val centerY = (globalBounds.height / 2)
-            sendClick(PxPosition(left, centerY))
+            sendClick(Offset(left, centerY))
         }
 
         runOnIdleCompose {
@@ -248,7 +248,7 @@
             BottomDrawerLayout(drawerState.value, { drawerState.value = it },
                 drawerContent = {
                     Box(Modifier.fillMaxSize().onPositioned { info: LayoutCoordinates ->
-                        val pos = info.localToGlobal(PxPosition.Origin)
+                        val pos = info.localToGlobal(Offset.Zero)
                         if (pos.y.roundToInt() == openedHeight?.value) {
                             // If fully opened, mark the openedLatch if present
                             openedLatch?.countDown()
@@ -326,7 +326,7 @@
             val bounds = globalBounds
             val centerX = bounds.width / 2
             val bottom = bounds.height - 1.0f
-            sendClick(PxPosition(centerX, bottom))
+            sendClick(Offset(centerX, bottom))
         }
 
         assertThat(drawerClicks).isEqualTo(1)