minor changes left out of http://crrev.com/873543002

TBR=mtklein@google.com

Review URL: https://codereview.chromium.org/872643005
diff --git a/src/pdf/SkPDFCanon.cpp b/src/pdf/SkPDFCanon.cpp
index bea1400..6b52018 100644
--- a/src/pdf/SkPDFCanon.cpp
+++ b/src/pdf/SkPDFCanon.cpp
@@ -39,7 +39,6 @@
 
 template <class T> T* assert_ptr(T* p) { SkASSERT(p); return p; }
 
-// TODO(halcanary):  add this method to SkTDArray.
 template <typename T>
 bool remove_item(SkTDArray<T>* array, const T& elem) {
     int i = array->find(elem);
diff --git a/src/pdf/SkPDFShader.cpp b/src/pdf/SkPDFShader.cpp
index a678ae6..20df873 100644
--- a/src/pdf/SkPDFShader.cpp
+++ b/src/pdf/SkPDFShader.cpp
@@ -661,7 +661,7 @@
  * Creates a ExtGState with the SMask set to the luminosityShader in
  * luminosity mode. The shader pattern extends to the bbox.
  */
-static SkPDFGraphicState* createsmask_graphic_state(
+static SkPDFGraphicState* create_smask_graphic_state(
         const SkPDFShader::State& state) {
     SkRect bbox;
     bbox.set(state.fBBox);
@@ -699,7 +699,7 @@
 
     // Create resource dict with alpha graphics state as G0 and
     // pattern shader as P0, then write content stream.
-    SkAutoTUnref<SkPDFGraphicState> alphaGs(createsmask_graphic_state(state));
+    SkAutoTUnref<SkPDFGraphicState> alphaGs(create_smask_graphic_state(state));
 
     SkPDFAlphaFunctionShader* alphaFunctionShader =
             SkNEW_ARGS(SkPDFAlphaFunctionShader, (autoState->detach()));