Move SoftwareFrameData overflow checks to the IPC code.

cc/output/software_frame_data.cc

Index: cc/output/software_frame_data.cc
diff --git a/cc/output/software_frame_data.cc b/cc/output/software_frame_data.cc
index 0b430325092f02a162776910aced9beca59c1a38..4bc09807e08125c472004be1325145faf9d9e2bb 100644
--- a/cc/output/software_frame_data.cc
+++ b/cc/output/software_frame_data.cc
@@ -12,4 +12,17 @@ SoftwareFrameData::SoftwareFrameData()
 
 SoftwareFrameData::~SoftwareFrameData() {}
 
+size_t SoftwareFrameData::SizeInBytes() const {
+  size_t bytes_per_pixel = 4;
+  size_t width = size.width();
+  size_t height = size.height();
+  return bytes_per_pixel * width * height;
+}
+
+base::CheckedNumeric<size_t> SoftwareFrameData::CheckedSizeInBytes() const {
+  return base::CheckedNumeric<size_t>(4) *
+         base::CheckedNumeric<size_t>(size.width()) *
+         base::CheckedNumeric<size_t>(size.height());
+}
+
 }  // namespace cc