Convert FabricUIManager.measure params to floats

Summary: Convert FabricUIManager.measure params to floats. Currently we convert parameters to ints across the JNI boundary, and then back to floats several times in Java. This is unnecessary and actually makes measurements trickier. The new implementation uses floats across the JNI boundary and uses Float.POSITIVE_INFINITY to represent unconstrained values, which is consistent with Fabric C++ as well.

Reviewed By: shergin, mdvacca

Differential Revision: D15176108

fbshipit-source-id: cf849b3773007637f059279460163872f300a4aa

ReactCommon/fabric/textlayoutmanager/platform/android/TextLayoutManager.cpp

@@ -36,17 +36,13 @@ Size TextLayoutManager::measure(
               jstring,
               ReadableMap::javaobject,
               ReadableMap::javaobject,
-              jint,
-              jint,
-              jint,
-              jint)>("measure");
+              jfloat,
+              jfloat,
+              jfloat,
+              jfloat)>("measure");
 
   auto minimumSize = layoutConstraints.minimumSize;
   auto maximumSize = layoutConstraints.maximumSize;
-  int minWidth = (int)minimumSize.width;
-  int minHeight = (int)minimumSize.height;
-  int maxWidth = (int)maximumSize.width;
-  int maxHeight = (int)maximumSize.height;
 
   local_ref<JString> componentName = make_jstring("RCTText");
   local_ref<ReadableNativeMap::javaobject> attributedStringRNM =
@@ -63,10 +59,10 @@ Size TextLayoutManager::measure(
       componentName.get(),
       attributedStringRM.get(),
       paragraphAttributesRM.get(),
-      minWidth,
-      maxWidth,
-      minHeight,
-      maxHeight));
+      minimumSize.width,
+      maximumSize.width,
+      minimumSize.height,
+      maximumSize.height));
 }
 
 } // namespace react