Remove unused methods in webkitpy cpp style checker and test.

third_party/WebKit/Tools/Scripts/webkitpy/style/checkers/cpp.py

Index: third_party/WebKit/Tools/Scripts/webkitpy/style/checkers/cpp.py
diff --git a/third_party/WebKit/Tools/Scripts/webkitpy/style/checkers/cpp.py b/third_party/WebKit/Tools/Scripts/webkitpy/style/checkers/cpp.py
index 29fa5236573596c6917fd72b20b9b03db62dcd6a..e020141ef4380979b76e28834c4ea5c6e51eba30 100644
--- a/third_party/WebKit/Tools/Scripts/webkitpy/style/checkers/cpp.py
+++ b/third_party/WebKit/Tools/Scripts/webkitpy/style/checkers/cpp.py
@@ -1200,7 +1200,6 @@ class _ClassState(object):
 class _FileState(object):
 
     def __init__(self, clean_lines, file_extension):
-        self._did_inside_namespace_indent_warning = False
         self._clean_lines = clean_lines
         if file_extension in ['m', 'mm']:
             self._is_objective_c = True
@@ -1218,12 +1217,6 @@ class _FileState(object):
             self._is_objective_c = False
             self._is_c = False
 
-    def set_did_inside_namespace_indent_warning(self):
-        self._did_inside_namespace_indent_warning = True
-
-    def did_inside_namespace_indent_warning(self):
-        return self._did_inside_namespace_indent_warning
-
     def is_objective_c(self):
         if self._is_objective_c is None:
             for line in self._clean_lines.elided:
@@ -1823,13 +1816,6 @@ def check_enum_casing(clean_lines, line_number, enum_state, error):
               'enum members should use InterCaps with an initial capital letter.')
 
 
-def get_initial_spaces_for_line(clean_line):
-    initial_spaces = 0
-    while initial_spaces < len(clean_line) and clean_line[initial_spaces] == ' ':
-        initial_spaces += 1
-    return initial_spaces
-
-
 def check_using_std(clean_lines, line_number, file_state, error):
     """Looks for 'using std::foo;' statements which should be replaced with 'using namespace std;'.