Fix missing symbols for pre-linking of the Cast sender library for iOS.

media/base/video_frame.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "media/base/video_frame.h"
 
 #include <algorithm>
 
 #include "base/bind.h"
 #include "base/callback_helpers.h"
@@ skipping 460 matching lines @@
 scoped_refptr<VideoFrame> VideoFrame::CreateEOSFrame() {
   return new VideoFrame(VideoFrame::UNKNOWN,
                         gfx::Size(),
                         gfx::Rect(),
                         gfx::Size(),
                         scoped_ptr<gpu::MailboxHolder>(),
                         kNoTimestamp(),
                         true);
 }
 
+#if !defined(MEDIA_FOR_CAST_IOS)
 // static
 scoped_refptr<VideoFrame> VideoFrame::CreateColorFrame(

[Nico, 2015/03/25 18:35:39]

So you use this class in cast, but you rely on nothing calling
CreateColorFrame()? That seems somewhat brittle…

     const gfx::Size& size,
     uint8 y, uint8 u, uint8 v,
     base::TimeDelta timestamp) {
   scoped_refptr<VideoFrame> frame = VideoFrame::CreateFrame(
       VideoFrame::YV12, size, gfx::Rect(size), size, timestamp);
   FillYUV(frame.get(), y, u, v);
   return frame;
 }
 
 // static
 scoped_refptr<VideoFrame> VideoFrame::CreateBlackFrame(const gfx::Size& size) {
   const uint8 kBlackY = 0x00;
   const uint8 kBlackUV = 0x80;
   const base::TimeDelta kZero;
   return CreateColorFrame(size, kBlackY, kBlackUV, kBlackUV, kZero);
 }
 
 // static
 scoped_refptr<VideoFrame> VideoFrame::CreateTransparentFrame(
     const gfx::Size& size) {
   const uint8 kBlackY = 0x00;
   const uint8 kBlackUV = 0x00;
   const uint8 kTransparentA = 0x00;
   const base::TimeDelta kZero;
   scoped_refptr<VideoFrame> frame = VideoFrame::CreateFrame(
       VideoFrame::YV12A, size, gfx::Rect(size), size, kZero);
   FillYUVA(frame.get(), kBlackY, kBlackUV, kBlackUV, kTransparentA);
   return frame;
 }
+#endif  // defined(MEDIA_FOR_CAST_IOS)
 
 #if defined(VIDEO_HOLE)
 // This block and other blocks wrapped around #if defined(VIDEO_HOLE) is not
 // maintained by the general compositor team. Please contact the following
 // people instead:
 //
 // wonsik@chromium.org
 // ycheo@chromium.org
 
 // static
@@ skipping 289 matching lines @@
   for (size_t plane = 0; plane < NumPlanes(format_); ++plane) {
     for (int row = 0; row < rows(plane); ++row) {
       base::MD5Update(context, base::StringPiece(
           reinterpret_cast<char*>(data(plane) + stride(plane) * row),
           row_bytes(plane)));
     }
   }
 }
 
 }  // namespace media