Add YUV_420_BIPLANAR to gfx::BufferFormat.

content/common/gpu/client/gpu_memory_buffer_impl_shared_memory.cc

Index: content/common/gpu/client/gpu_memory_buffer_impl_shared_memory.cc
diff --git a/content/common/gpu/client/gpu_memory_buffer_impl_shared_memory.cc b/content/common/gpu/client/gpu_memory_buffer_impl_shared_memory.cc
index 1f52a646fdeaeb7c09ab3be17717de198d02218b..dd43c0ff4486a60e9a64c343595fd61b63158140 100644
--- a/content/common/gpu/client/gpu_memory_buffer_impl_shared_memory.cc
+++ b/content/common/gpu/client/gpu_memory_buffer_impl_shared_memory.cc
@@ -107,6 +107,7 @@ bool GpuMemoryBufferImplSharedMemory::IsFormatSupported(
     case gfx::BufferFormat::RGBA_8888:
     case gfx::BufferFormat::BGRA_8888:
     case gfx::BufferFormat::YUV_420:
+    case gfx::BufferFormat::YUV_420_BIPLANAR:
       return true;
     case gfx::BufferFormat::RGBX_8888:
       return false;
@@ -148,7 +149,8 @@ bool GpuMemoryBufferImplSharedMemory::IsSizeValidForFormat(
     case gfx::BufferFormat::BGRA_8888:
     case gfx::BufferFormat::RGBX_8888:
       return true;
-    case gfx::BufferFormat::YUV_420: {
+    case gfx::BufferFormat::YUV_420:
+    case gfx::BufferFormat::YUV_420_BIPLANAR: {
       size_t num_planes = gfx::GpuMemoryBuffer::NumberOfPlanes(format);
       for (size_t i = 0; i < num_planes; ++i) {
         size_t factor = SubsamplingFactor(format, i);