style: member functions should be lower camel

Rename member functions to be lower camel instead of snake case.

Change-Id: Ib227fd3dadb6d9607290277205223a4324cd4ce5
Signed-off-by: Patrick Venture <venture@google.com>
diff --git a/test/pid_stepwisecontroller_unittest.cpp b/test/pid_stepwisecontroller_unittest.cpp
index 45d1b81..880864d 100644
--- a/test/pid_stepwisecontroller_unittest.cpp
+++ b/test/pid_stepwisecontroller_unittest.cpp
@@ -29,7 +29,7 @@
     initial.output[1] = 60.0;
 
     std::unique_ptr<Controller> p =
-        StepwiseController::CreateStepwiseController(&z, "foo", inputs,
+        StepwiseController::createStepwiseController(&z, "foo", inputs,
                                                      initial);
 
     EXPECT_CALL(z, getCachedValue(StrEq("test")))
@@ -64,7 +64,7 @@
     initial.output[1] = 60.0;
 
     std::unique_ptr<Controller> p =
-        StepwiseController::CreateStepwiseController(&z, "foo", inputs,
+        StepwiseController::createStepwiseController(&z, "foo", inputs,
                                                      initial);
 
     EXPECT_CALL(z, getCachedValue(StrEq("test")))