Modifying the IBackendProfilingContext interface to return a bool on
EnableProfiling and adding error checking to the Runtime
Invocation

Signed-off-by: David Monahan <david.monahan@arm.com>
Change-Id: I65b8bb16c6f1c7d668de31238ce0408a48974997
diff --git a/src/backends/backendsCommon/test/MockBackend.hpp b/src/backends/backendsCommon/test/MockBackend.hpp
index 3227ce5..6e415b9 100644
--- a/src/backends/backendsCommon/test/MockBackend.hpp
+++ b/src/backends/backendsCommon/test/MockBackend.hpp
@@ -88,8 +88,10 @@
         return { profiling::Timestamp{ timestamp, counterValues } };
     }
 
-    void EnableProfiling(bool)
-    {}
+    bool EnableProfiling(bool)
+    {
+        return true;
+    }
 
 private:
     IBackendInternal::IBackendProfilingPtr m_BackendProfiling;