diff --git a/include/input/Input.h b/include/input/Input.h
index 7b522bb..14c9db3 100644
--- a/include/input/Input.h
+++ b/include/input/Input.h
@@ -348,8 +348,6 @@
     float getAxisValue(int32_t axis) const;
     status_t setAxisValue(int32_t axis, float value);
 
-    void scale(float globalScale);
-
     // Scale the pointer coordinates according to a global scale and a
     // window scale. The global scale will be applied to TOUCH/TOOL_MAJOR/MINOR
     // axes, however the window scaling will not.
diff --git a/libs/input/Input.cpp b/libs/input/Input.cpp
index deb4679..518af0d 100644
--- a/libs/input/Input.cpp
+++ b/libs/input/Input.cpp
@@ -253,10 +253,6 @@
     scaleAxisValue(*this, AMOTION_EVENT_AXIS_TOOL_MINOR, globalScaleFactor);
 }
 
-void PointerCoords::scale(float globalScaleFactor) {
-    scale(globalScaleFactor, globalScaleFactor, globalScaleFactor);
-}
-
 void PointerCoords::applyOffset(float xOffset, float yOffset) {
     setAxisValue(AMOTION_EVENT_AXIS_X, getX() + xOffset);
     setAxisValue(AMOTION_EVENT_AXIS_Y, getY() + yOffset);
diff --git a/libs/nativewindow/include/android/hardware_buffer.h b/libs/nativewindow/include/android/hardware_buffer.h
index d93a84c..d5e7cb2 100644
--- a/libs/nativewindow/include/android/hardware_buffer.h
+++ b/libs/nativewindow/include/android/hardware_buffer.h
@@ -556,6 +556,7 @@
                                    int32_t* _Nonnull outBytesPerPixel,
                                    int32_t* _Nonnull outBytesPerStride) __INTRODUCED_IN(29);
 
+
 /**
  * Get the system wide unique id for an AHardwareBuffer.
  *
diff --git a/libs/ui/Android.bp b/libs/ui/Android.bp
index 74d17ce..5a118ec 100644
--- a/libs/ui/Android.bp
+++ b/libs/ui/Android.bp
@@ -137,7 +137,6 @@
         "HdrCapabilities.cpp",
         "PixelFormat.cpp",
         "PublicFormat.cpp",
-        "Size.cpp",
         "StaticDisplayInfo.cpp",
     ],
 
diff --git a/libs/ui/Size.cpp b/libs/ui/Size.cpp
deleted file mode 100644
index d2996d1..0000000
--- a/libs/ui/Size.cpp
+++ /dev/null
@@ -1,24 +0,0 @@
-/*
- * Copyright 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <ui/Size.h>
-
-namespace android::ui {
-
-const Size Size::INVALID{-1, -1};
-const Size Size::EMPTY{0, 0};
-
-} // namespace android::ui
diff --git a/libs/ui/include/ui/Size.h b/libs/ui/include/ui/Size.h
index f1e8252..ecc192d 100644
--- a/libs/ui/include/ui/Size.h
+++ b/libs/ui/include/ui/Size.h
@@ -23,103 +23,70 @@
 #include <type_traits>
 #include <utility>
 
-namespace android {
-namespace ui {
+namespace android::ui {
 
-// Forward declare a few things.
-struct Size;
-bool operator==(const Size& lhs, const Size& rhs);
-
-/**
- * A simple value type representing a two-dimensional size
- */
+// A simple value type representing a two-dimensional size.
 struct Size {
-    int32_t width;
-    int32_t height;
+    int32_t width = -1;
+    int32_t height = -1;
 
-    // Special values
-    static const Size INVALID;
-    static const Size EMPTY;
+    constexpr Size() = default;
 
-    // ------------------------------------------------------------------------
-    // Construction
-    // ------------------------------------------------------------------------
-
-    Size() : Size(INVALID) {}
     template <typename T>
-    Size(T&& w, T&& h)
-          : width(Size::clamp<int32_t, T>(std::forward<T>(w))),
-            height(Size::clamp<int32_t, T>(std::forward<T>(h))) {}
-
-    // ------------------------------------------------------------------------
-    // Accessors
-    // ------------------------------------------------------------------------
+    constexpr Size(T w, T h) : width(clamp<int32_t>(w)), height(clamp<int32_t>(h)) {}
 
     int32_t getWidth() const { return width; }
     int32_t getHeight() const { return height; }
 
-    template <typename T>
-    void setWidth(T&& v) {
-        width = Size::clamp<int32_t, T>(std::forward<T>(v));
-    }
-    template <typename T>
-    void setHeight(T&& v) {
-        height = Size::clamp<int32_t, T>(std::forward<T>(v));
-    }
-
-    // ------------------------------------------------------------------------
-    // Assignment
-    // ------------------------------------------------------------------------
-
-    void set(const Size& size) { *this = size; }
-    template <typename T>
-    void set(T&& w, T&& h) {
-        set(Size(std::forward<T>(w), std::forward<T>(h)));
-    }
-
-    // Sets the value to INVALID
-    void makeInvalid() { set(INVALID); }
-
-    // Sets the value to EMPTY
-    void clear() { set(EMPTY); }
-
-    // ------------------------------------------------------------------------
-    // Semantic checks
-    // ------------------------------------------------------------------------
-
     // Valid means non-negative width and height
     bool isValid() const { return width >= 0 && height >= 0; }
 
     // Empty means zero width and height
-    bool isEmpty() const { return *this == EMPTY; }
+    bool isEmpty() const;
 
-    // ------------------------------------------------------------------------
-    // Clamp Helpers
-    // ------------------------------------------------------------------------
-
-    // Note: We use only features available in C++11 here for compatibility with
-    // external targets which include this file directly or indirectly and which
-    // themselves use C++11.
-
-    // C++11 compatible replacement for std::remove_cv_reference_t [C++20]
     template <typename T>
-    using remove_cv_reference_t =
-            typename std::remove_cv<typename std::remove_reference<T>::type>::type;
+    void setWidth(T v) {
+        width = clamp<int32_t>(v);
+    }
+
+    template <typename T>
+    void setHeight(T v) {
+        height = clamp<int32_t>(v);
+    }
+
+    void set(Size size) { *this = size; }
+
+    template <typename T>
+    void set(T w, T h) {
+        set(Size(w, h));
+    }
+
+    // Sets the value to kInvalidSize
+    void makeInvalid();
+
+    // Sets the value to kEmptySize
+    void clear();
+
+    // TODO: Replace with std::remove_cvref_t in C++20.
+    template <typename T>
+    using remove_cvref_t = std::remove_cv_t<std::remove_reference_t<T>>;
 
     // Takes a value of type FromType, and ensures it can be represented as a value of type ToType,
     // clamping the input value to the output range if necessary.
     template <typename ToType, typename FromType>
-    static Size::remove_cv_reference_t<ToType>
-    clamp(typename std::enable_if<
-            std::numeric_limits<Size::remove_cv_reference_t<ToType>>::is_specialized &&
-                    std::numeric_limits<Size::remove_cv_reference_t<FromType>>::is_specialized,
-            FromType>::type v) {
-        using BareToType = remove_cv_reference_t<ToType>;
-        using BareFromType = remove_cv_reference_t<FromType>;
-        static constexpr auto toHighest = std::numeric_limits<BareToType>::max();
-        static constexpr auto toLowest = std::numeric_limits<BareToType>::lowest();
-        static constexpr auto fromHighest = std::numeric_limits<BareFromType>::max();
-        static constexpr auto fromLowest = std::numeric_limits<BareFromType>::lowest();
+    static constexpr remove_cvref_t<ToType> clamp(FromType v) {
+        using BareToType = remove_cvref_t<ToType>;
+        using ToLimits = std::numeric_limits<BareToType>;
+
+        using BareFromType = remove_cvref_t<FromType>;
+        using FromLimits = std::numeric_limits<BareFromType>;
+
+        static_assert(ToLimits::is_specialized && FromLimits::is_specialized);
+
+        constexpr auto toHighest = ToLimits::max();
+        constexpr auto toLowest = ToLimits::lowest();
+        constexpr auto fromHighest = FromLimits::max();
+        constexpr auto fromLowest = FromLimits::lowest();
 
         // Get the closest representation of [toLowest, toHighest] in type
         // FromType to use to clamp the input value before conversion.
@@ -127,37 +94,35 @@
         // std::common_type<...> is used to get a value-preserving type for the
         // top end of the range.
         using CommonHighestType = std::common_type_t<BareToType, BareFromType>;
+        using CommonLimits = std::numeric_limits<CommonHighestType>;
 
         // std::make_signed<std::common_type<...>> is used to get a
         // value-preserving type for the bottom end of the range, except this is
         // a bit trickier for non-integer types like float.
-        using CommonLowestType =
-                std::conditional_t<std::numeric_limits<CommonHighestType>::is_integer,
-                                   std::make_signed_t<std::conditional_t<
-                                           std::numeric_limits<CommonHighestType>::is_integer,
-                                           CommonHighestType, int /* not used */>>,
-                                   CommonHighestType>;
+        using CommonLowestType = std::conditional_t<
+                CommonLimits::is_integer,
+                std::make_signed_t<std::conditional_t<CommonLimits::is_integer, CommonHighestType,
+                                                      int /* not used */>>,
+                CommonHighestType>;
 
         // We can then compute the clamp range in a way that can be later
         // trivially converted to either the 'from' or 'to' types, and be
-        // representabile in either.
-        static constexpr auto commonClampHighest =
-                std::min(static_cast<CommonHighestType>(fromHighest),
-                         static_cast<CommonHighestType>(toHighest));
-        static constexpr auto commonClampLowest =
-                std::max(static_cast<CommonLowestType>(fromLowest),
-                         static_cast<CommonLowestType>(toLowest));
+        // representable in either.
+        constexpr auto commonClampHighest = std::min(static_cast<CommonHighestType>(fromHighest),
+                                                     static_cast<CommonHighestType>(toHighest));
+        constexpr auto commonClampLowest = std::max(static_cast<CommonLowestType>(fromLowest),
+                                                    static_cast<CommonLowestType>(toLowest));
 
-        static constexpr auto fromClampHighest = static_cast<BareFromType>(commonClampHighest);
-        static constexpr auto fromClampLowest = static_cast<BareFromType>(commonClampLowest);
+        constexpr auto fromClampHighest = static_cast<BareFromType>(commonClampHighest);
+        constexpr auto fromClampLowest = static_cast<BareFromType>(commonClampLowest);
 
         // A clamp is needed only if the range we are clamping to is not the
         // same as the range of the input.
-        static constexpr bool isClampNeeded =
+        constexpr bool isClampNeeded =
                 (fromLowest != fromClampLowest) || (fromHighest != fromClampHighest);
 
         // If a clamp is not needed, the conversion is just a trivial cast.
-        if (!isClampNeeded) {
+        if constexpr (!isClampNeeded) {
             return static_cast<BareToType>(v);
         }
 
@@ -170,34 +135,46 @@
 
         // Otherwise clamping is done by using the already computed endpoints
         // for each type.
-        return (v <= fromClampLowest)
-                ? toClampLowest
-                : ((v >= fromClampHighest) ? toClampHighest : static_cast<BareToType>(v));
+        if (v <= fromClampLowest) {
+            return toClampLowest;
+        }
+
+        return v >= fromClampHighest ? toClampHighest : static_cast<BareToType>(v);
     }
 };
 
-// ------------------------------------------------------------------------
-// Comparisons
-// ------------------------------------------------------------------------
+constexpr Size kInvalidSize;
+constexpr Size kEmptySize{0, 0};
 
-inline bool operator==(const Size& lhs, const Size& rhs) {
+inline void Size::makeInvalid() {
+    set(kInvalidSize);
+}
+
+inline void Size::clear() {
+    set(kEmptySize);
+}
+
+inline bool operator==(Size lhs, Size rhs) {
     return lhs.width == rhs.width && lhs.height == rhs.height;
 }
 
-inline bool operator!=(const Size& lhs, const Size& rhs) {
-    return !operator==(lhs, rhs);
+inline bool Size::isEmpty() const {
+    return *this == kEmptySize;
 }
 
-inline bool operator<(const Size& lhs, const Size& rhs) {
+inline bool operator!=(Size lhs, Size rhs) {
+    return !(lhs == rhs);
+}
+
+inline bool operator<(Size lhs, Size rhs) {
     // Orders by increasing width, then height.
     if (lhs.width != rhs.width) return lhs.width < rhs.width;
     return lhs.height < rhs.height;
 }
 
 // Defining PrintTo helps with Google Tests.
-static inline void PrintTo(const Size& size, ::std::ostream* os) {
-    *os << "Size(" << size.width << ", " << size.height << ")";
+inline void PrintTo(Size size, std::ostream* stream) {
+    *stream << "Size(" << size.width << ", " << size.height << ')';
 }
 
-} // namespace ui
-} // namespace android
+} // namespace android::ui
diff --git a/libs/ui/tests/Size_test.cpp b/libs/ui/tests/Size_test.cpp
index 5f75aea..acef47f 100644
--- a/libs/ui/tests/Size_test.cpp
+++ b/libs/ui/tests/Size_test.cpp
@@ -93,9 +93,8 @@
     }
 
     {
-        const auto& s = Size::INVALID;
-        EXPECT_FALSE(s.isValid());
-        EXPECT_FALSE(s.isEmpty());
+        EXPECT_FALSE(kInvalidSize.isValid());
+        EXPECT_FALSE(kInvalidSize.isEmpty());
     }
 
     {
@@ -112,9 +111,8 @@
     }
 
     {
-        const auto& s = Size::EMPTY;
-        EXPECT_TRUE(s.isValid());
-        EXPECT_TRUE(s.isEmpty());
+        EXPECT_TRUE(kEmptySize.isValid());
+        EXPECT_TRUE(kEmptySize.isEmpty());
     }
 
     {
diff --git a/services/inputflinger/dispatcher/Entry.cpp b/services/inputflinger/dispatcher/Entry.cpp
index 6ed9593..0539e4f 100644
--- a/services/inputflinger/dispatcher/Entry.cpp
+++ b/services/inputflinger/dispatcher/Entry.cpp
@@ -176,10 +176,11 @@
     }
     return StringPrintf("KeyEvent(deviceId=%d, eventTime=%" PRIu64
                         ", source=0x%08x, displayId=%" PRId32 ", action=%s, "
-                        "flags=0x%08x, keyCode=%d, scanCode=%d, metaState=0x%08x, "
+                        "flags=0x%08x, keyCode=%s(%d), scanCode=%d, metaState=0x%08x, "
                         "repeatCount=%d), policyFlags=0x%08x",
                         deviceId, eventTime, source, displayId, KeyEvent::actionToString(action),
-                        flags, keyCode, scanCode, metaState, repeatCount, policyFlags);
+                        flags, KeyEvent::getLabel(keyCode), keyCode, scanCode, metaState,
+                        repeatCount, policyFlags);
 }
 
 void KeyEntry::recycle() {
diff --git a/services/surfaceflinger/CompositionEngine/include/compositionengine/DisplayCreationArgs.h b/services/surfaceflinger/CompositionEngine/include/compositionengine/DisplayCreationArgs.h
index 633668e..317d333 100644
--- a/services/surfaceflinger/CompositionEngine/include/compositionengine/DisplayCreationArgs.h
+++ b/services/surfaceflinger/CompositionEngine/include/compositionengine/DisplayCreationArgs.h
@@ -47,7 +47,7 @@
     std::optional<Physical> physical;
 
     // Size of the display in pixels
-    ui::Size pixels = ui::Size::INVALID;
+    ui::Size pixels = ui::kInvalidSize;
 
     // Pixel format of the display
     ui::PixelFormat pixelFormat = static_cast<ui::PixelFormat>(PIXEL_FORMAT_UNKNOWN);