onGetInfo is deprecated, just pass info to constructor

no functionality change, just refactoring.

BUG=

Review URL: https://codereview.chromium.org/1125573002

Cr-Commit-Position: refs/heads/master@{#328272}

media/blink/skcanvas_video_renderer.cc

@@ -170,22 +170,18 @@ class SyncPointClientImpl : public VideoFrame::SyncPointClient {
 // Generates an RGB image from a VideoFrame. Convert YUV to RGB plain on GPU.
 class VideoImageGenerator : public SkImageGenerator {
  public:
-  VideoImageGenerator(const scoped_refptr<VideoFrame>& frame) : frame_(frame) {
+  VideoImageGenerator(const scoped_refptr<VideoFrame>& frame)
+      : SkImageGenerator(
+            SkImageInfo::MakeN32Premul(frame->visible_rect().width(),
+                                       frame->visible_rect().height()))
+      , frame_(frame) {
     DCHECK(frame_.get());
   }
   ~VideoImageGenerator() override {}
 
   void set_frame(const scoped_refptr<VideoFrame>& frame) { frame_ = frame; }
 
  protected:
-  bool onGetInfo(SkImageInfo* info) override {
-    info->fWidth = frame_->visible_rect().width();
-    info->fHeight = frame_->visible_rect().height();
-    info->fColorType = kN32_SkColorType;
-    info->fAlphaType = kPremul_SkAlphaType;
-    return true;
-  }
-
   Result onGetPixels(const SkImageInfo& info,
                      void* pixels,
                      size_t row_bytes,

skia/config/SkUserConfig.h

@@ -261,10 +261,6 @@ SK_API void SkDebugf_FileLine(const char* file, int line, bool fatal,
 #   define SK_IGNORE_ETC1_SUPPORT
 #endif
 
-#ifndef    SK_SUPPORT_LEGACY_BOOL_ONGETINFO
-#   define SK_SUPPORT_LEGACY_BOOL_ONGETINFO
-#endif
-
 #ifndef    SK_IGNORE_GPU_DITHER
 #   define SK_IGNORE_GPU_DITHER
 #endif