Move NumberOfPlanesForGpuMemoryBufferFormat to gfx

gpu/command_buffer/tests/gl_manager.cc

Index: gpu/command_buffer/tests/gl_manager.cc
diff --git a/gpu/command_buffer/tests/gl_manager.cc b/gpu/command_buffer/tests/gl_manager.cc
index 3b9e1705d4ab49718f34dba5ba37f4d3550ce3bc..ff62997db03a7b7a8641343918e2ed9208912005 100644
--- a/gpu/command_buffer/tests/gl_manager.cc
+++ b/gpu/command_buffer/tests/gl_manager.cc
@@ -39,26 +39,6 @@
 namespace gpu {
 namespace {
 
-size_t NumberOfPlanesForGpuMemoryBufferFormat(gfx::BufferFormat format) {
-  switch (format) {
-    case gfx::BufferFormat::ATC:
-    case gfx::BufferFormat::ATCIA:
-    case gfx::BufferFormat::DXT1:
-    case gfx::BufferFormat::DXT5:
-    case gfx::BufferFormat::ETC1:
-    case gfx::BufferFormat::R_8:
-    case gfx::BufferFormat::RGBA_4444:
-    case gfx::BufferFormat::RGBA_8888:
-    case gfx::BufferFormat::RGBX_8888:
-    case gfx::BufferFormat::BGRA_8888:
-      return 1;
-    case gfx::BufferFormat::YUV_420:
-      return 3;
-  }
-  NOTREACHED();
-  return 0;
-}
-
 size_t SubsamplingFactor(gfx::BufferFormat format, int plane) {
   switch (format) {
     case gfx::BufferFormat::ATC:
@@ -116,7 +96,7 @@ size_t StrideInBytes(size_t width, gfx::BufferFormat format, int plane) {
 
 size_t BufferSizeInBytes(const gfx::Size& size, gfx::BufferFormat format) {
   size_t size_in_bytes = 0;
-  size_t num_planes = NumberOfPlanesForGpuMemoryBufferFormat(format);
+  size_t num_planes = gfx::GpuMemoryBuffer::NumberOfPlanes(format);
   for (size_t i = 0; i < num_planes; ++i) {
     size_in_bytes += StrideInBytes(size.width(), format, i) *
                      (size.height() / SubsamplingFactor(format, i));
@@ -138,7 +118,7 @@ class GpuMemoryBufferImpl : public gfx::GpuMemoryBuffer {
   // Overridden from gfx::GpuMemoryBuffer:
   bool Map(void** data) override {
     size_t offset = 0;
-    size_t num_planes = NumberOfPlanesForGpuMemoryBufferFormat(format_);
+    size_t num_planes = gfx::GpuMemoryBuffer::NumberOfPlanes(format_);
     for (size_t i = 0; i < num_planes; ++i) {
       data[i] = reinterpret_cast<uint8*>(&bytes_->data().front()) + offset;
       offset += StrideInBytes(size_.width(), format_, i) *
@@ -151,7 +131,7 @@ class GpuMemoryBufferImpl : public gfx::GpuMemoryBuffer {
   bool IsMapped() const override { return mapped_; }
   gfx::BufferFormat GetFormat() const override { return format_; }
   void GetStride(int* stride) const override {
-    size_t num_planes = NumberOfPlanesForGpuMemoryBufferFormat(format_);
+    size_t num_planes = gfx::GpuMemoryBuffer::NumberOfPlanes(format_);
     for (size_t i = 0; i < num_planes; ++i)
       stride[i] = StrideInBytes(size_.width(), format_, i);
   }