Revert of Delete deprecated and transitional stuff related to video frame refactoring. (patchset #17 id:320001 of https://codereview.webrtc.org/2622263002/ )

Reason for revert:
Broke Chrome build, see, e.g.,
http://build.chromium.org/p/chromium.webrtc.fyi/builders/Linux%20Builder/builds/16237

Original issue's description:
> Delete deprecated and transitional stuff related to video frame refactoring.
>
> BUG=webrtc:5880
>
> Review-Url: https://codereview.webrtc.org/2622263002
> Cr-Commit-Position: refs/heads/master@{#17928}
> Committed: 713a3bbcc7

TBR=mflodman@webrtc.org,perkj@webrtc.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=webrtc:5880

Review-Url: https://codereview.webrtc.org/2845333002
Cr-Commit-Position: refs/heads/master@{#17929}

webrtc/sdk/android/src/jni/native_handle_impl.cc

@@ -12,13 +12,12 @@
 
 #include <memory>
 
-#include "webrtc/api/video/i420_buffer.h"
+#include "webrtc/sdk/android/src/jni/jni_helpers.h"
 #include "webrtc/base/bind.h"
 #include "webrtc/base/checks.h"
 #include "webrtc/base/keep_ref_until_done.h"
 #include "webrtc/base/logging.h"
 #include "webrtc/base/scoped_ref_ptr.h"
-#include "webrtc/sdk/android/src/jni/jni_helpers.h"
 
 using webrtc::NativeHandleBuffer;
 
@@ -143,10 +142,6 @@ AndroidTextureBuffer::NativeToI420Buffer() {
   //
   // TODO(nisse): Use an I420BufferPool. We then need to extend that
   // class, and I420Buffer, to support our memory layout.
-  // TODO(nisse): Depending on
-  // system_wrappers/include/aligned_malloc.h violate current DEPS
-  // rules. We get away for now only because it is indirectly included
-  // by i420_buffer.h
   std::unique_ptr<uint8_t, webrtc::AlignedFreeDeleter> yuv_data(
       static_cast<uint8_t*>(webrtc::AlignedMalloc(size, kBufferAlignment)));
   // See YuvConverter.java for the required layout.