SkBitmap and SkPixelRef no longer need lock/unlock

third_party/WebKit/Source/platform/graphics/ImageFrameGenerator.cpp

Index: third_party/WebKit/Source/platform/graphics/ImageFrameGenerator.cpp
diff --git a/third_party/WebKit/Source/platform/graphics/ImageFrameGenerator.cpp b/third_party/WebKit/Source/platform/graphics/ImageFrameGenerator.cpp
index 933023eeb1171a19c7a7b7e4938d58f9a630b070..2382ab7ae8b3ebd5c31b7d484eba88d6e14b1597 100644
--- a/third_party/WebKit/Source/platform/graphics/ImageFrameGenerator.cpp
+++ b/third_party/WebKit/Source/platform/graphics/ImageFrameGenerator.cpp
@@ -86,10 +86,7 @@ class ExternalMemoryAllocator final : public SkBitmap::Allocator {
     if (!CompatibleInfo(info_, info) || row_bytes_ != dst->rowBytes())
       return false;
 
-    if (!dst->installPixels(info, pixels_, row_bytes_))
-      return false;
-    dst->lockPixels();
-    return true;
+    return dst->installPixels(info, pixels_, row_bytes_);
   }
 
  private:
@@ -165,7 +162,6 @@ bool ImageFrameGenerator::DecodeAndScale(
   // provided. If not, make a copy.
   DCHECK_EQ(bitmap.width(), scaled_size.width());
   DCHECK_EQ(bitmap.height(), scaled_size.height());
-  SkAutoLockPixels bitmap_lock(bitmap);
   if (bitmap.getPixels() != pixels)
     CopyPixels(pixels, row_bytes, bitmap.getPixels(), bitmap.rowBytes(), info);
   return true;