Added new VideoFrameBuffer methods Data[YUV]() etc.

webrtc/common_video/i420_buffer_pool.cc

Index: webrtc/common_video/i420_buffer_pool.cc
diff --git a/webrtc/common_video/i420_buffer_pool.cc b/webrtc/common_video/i420_buffer_pool.cc
index 82a10797b353d3b9978411f1ce9e1c7edf878748..b814c04ca8392f92c8976858b6b03c6664e09a23 100644
--- a/webrtc/common_video/i420_buffer_pool.cc
+++ b/webrtc/common_video/i420_buffer_pool.cc
@@ -26,18 +26,27 @@ class PooledI420Buffer : public webrtc::VideoFrameBuffer {
 
   int width() const override { return buffer_->width(); }
   int height() const override { return buffer_->height(); }
-  const uint8_t* data(webrtc::PlaneType type) const override {
-    return buffer_->data(type);
+  const uint8_t* DataY() const override { return buffer_->DataY(); }
+  const uint8_t* DataU() const override { return buffer_->DataU(); }
+  const uint8_t* DataV() const override { return buffer_->DataV(); }
+
+  // Make the HasOneRef() check here instead of in |buffer_|, because the pool
+  // also has a reference to |buffer_|.
+  uint8_t* MutableDataY() override {
+    RTC_DCHECK(HasOneRef());
+    return const_cast<uint8_t*>(buffer_->DataY());
   }
-  uint8_t* MutableData(webrtc::PlaneType type) override {
-    // Make the HasOneRef() check here instead of in |buffer_|, because the pool
-    // also has a reference to |buffer_|.
+  uint8_t* MutableDataU() override {
     RTC_DCHECK(HasOneRef());
-    return const_cast<uint8_t*>(buffer_->data(type));
+    return const_cast<uint8_t*>(buffer_->DataU());
   }
-  int stride(webrtc::PlaneType type) const override {
-    return buffer_->stride(type);
+  uint8_t* MutableDataV() override {
+    RTC_DCHECK(HasOneRef());
+    return const_cast<uint8_t*>(buffer_->DataV());
   }
+  int StrideY() const override { return buffer_->StrideY(); }
+  int StrideU() const override { return buffer_->StrideU(); }
+  int StrideV() const override { return buffer_->StrideV(); }
   void* native_handle() const override { return nullptr; }
 
   rtc::scoped_refptr<VideoFrameBuffer> NativeToI420Buffer() override {