WebGL TexParameterf and GetTexParameterf needs to handle float param correctly

gpu/command_buffer/service/error_state_mock.h

Index: gpu/command_buffer/service/error_state_mock.h
diff --git a/gpu/command_buffer/service/error_state_mock.h b/gpu/command_buffer/service/error_state_mock.h
index 00bed9a47124e24abb5cab2f29780dc1b7213cd2..e418ca5d35e18e40df48d0686825136d9652a05d 100644
--- a/gpu/command_buffer/service/error_state_mock.h
+++ b/gpu/command_buffer/service/error_state_mock.h
@@ -25,13 +25,20 @@ class MockErrorState : public ErrorState {
   MOCK_METHOD5(SetGLErrorInvalidEnum, void(
       const char* filename, int line,
       const char* function_name, unsigned value, const char* label));
-  MOCK_METHOD6(SetGLErrorInvalidParam, void(
+  MOCK_METHOD6(SetGLErrorInvalidParami, void(
       const char* filename,
       int line,
       unsigned error,
       const char* function_name,
       unsigned pname,
       int param));
+  MOCK_METHOD6(SetGLErrorInvalidParamf, void(
+      const char* filename,
+      int line,
+      unsigned error,
+      const char* function_name,
+      unsigned pname,
+      float param));
   MOCK_METHOD3(PeekGLError, unsigned(
       const char* file, int line, const char* filename));
   MOCK_METHOD3(CopyRealGLErrorsToWrapper, void(