Add getRawWidth() and getRawHeight()

Minor refactor to move the computation of raw width and raw height into
RawPointerAxes. This is needed because a future CL will use these
functions again.

Bug: 116239493
Test: atest inputflinger_tests
Change-Id: I25086f9ba370f9891851e87a2b2375af867409f3
diff --git a/services/inputflinger/InputReader.cpp b/services/inputflinger/InputReader.cpp
index 869bd71..e85e6ef 100644
--- a/services/inputflinger/InputReader.cpp
+++ b/services/inputflinger/InputReader.cpp
@@ -3480,8 +3480,8 @@
     }
 
     // Raw width and height in the natural orientation.
-    int32_t rawWidth = mRawPointerAxes.x.maxValue - mRawPointerAxes.x.minValue + 1;
-    int32_t rawHeight = mRawPointerAxes.y.maxValue - mRawPointerAxes.y.minValue + 1;
+    int32_t rawWidth = mRawPointerAxes.getRawWidth();
+    int32_t rawHeight = mRawPointerAxes.getRawHeight();
 
     // Get associated display dimensions.
     DisplayViewport newViewport;
@@ -3913,8 +3913,8 @@
 
     int32_t touchScreenLeft = mRawPointerAxes.x.minValue;
     int32_t touchScreenTop = mRawPointerAxes.y.minValue;
-    int32_t touchScreenWidth = mRawPointerAxes.x.maxValue - mRawPointerAxes.x.minValue + 1;
-    int32_t touchScreenHeight = mRawPointerAxes.y.maxValue - mRawPointerAxes.y.minValue + 1;
+    int32_t touchScreenWidth = mRawPointerAxes.getRawWidth();
+    int32_t touchScreenHeight = mRawPointerAxes.getRawHeight();
 
     for (size_t i = 0; i < virtualKeyDefinitions.size(); i++) {
         const VirtualKeyDefinition& virtualKeyDefinition =