Fixes for -Wunused-function on Linux, Android and ChromeOS

android_webview/browser/in_process_view_renderer.cc

Index: android_webview/browser/in_process_view_renderer.cc
diff --git a/android_webview/browser/in_process_view_renderer.cc b/android_webview/browser/in_process_view_renderer.cc
index 88415f796d923eff3379686168d80eab644ec51c..4496f2b1b310adcc6809a69d31702044a6e8ebbc 100644
--- a/android_webview/browser/in_process_view_renderer.cc
+++ b/android_webview/browser/in_process_view_renderer.cc
@@ -107,11 +107,6 @@ bool RasterizeIntoBitmap(JNIEnv* env,
   return succeeded;
 }
 
-bool RenderPictureToCanvas(SkPicture* picture, SkCanvas* canvas) {
-  canvas->drawPicture(*picture);
-  return true;
-}
-
 class ScopedPixelAccess {
  public:
   ScopedPixelAccess(JNIEnv* env, jobject java_canvas) {