Modifies SDK and iOS detection for helper method that needs iOS 9+
BUG=NONE
R=tkchin@webrtc.org
Review URL: https://codereview.webrtc.org/1746023002 .
Cr-Commit-Position: refs/heads/master@{#11861}
diff --git a/webrtc/modules/utility/include/helpers_ios.h b/webrtc/modules/utility/include/helpers_ios.h
index d3f788f..1b692f1 100644
--- a/webrtc/modules/utility/include/helpers_ios.h
+++ b/webrtc/modules/utility/include/helpers_ios.h
@@ -37,11 +37,12 @@
// Returns the current name of the operating system.
std::string GetSystemName();
-// Returns the current version of the operating system.
-std::string GetSystemVersion();
+// Returns the current version of the operating system as a string.
+std::string GetSystemVersionAsString();
-// Returns the version of the operating system as a floating point value.
-float GetSystemVersionAsFloat();
+// Returns the version of the operating system in double representation.
+// Uses a cached value of the system version.
+double GetSystemVersion();
// Returns the device type.
// Examples: ”iPhone” and ”iPod touch”.