Move SoftwareFrameData overflow checks to the IPC code.

cc/output/software_frame_data.h

Index: cc/output/software_frame_data.h
diff --git a/cc/output/software_frame_data.h b/cc/output/software_frame_data.h
index b7fb44a4e818c028b637e034a0e5ff90b5381cf7..8463f808c8678183a9eaab670b220c36e783cd4d 100644
--- a/cc/output/software_frame_data.h
+++ b/cc/output/software_frame_data.h
@@ -6,6 +6,7 @@
 #define CC_OUTPUT_SOFTWARE_FRAME_DATA_H_
 
 #include "base/memory/shared_memory.h"
+#include "base/numerics/safe_math.h"
 #include "cc/base/cc_export.h"
 #include "ui/gfx/rect.h"
 
@@ -20,6 +21,9 @@ class CC_EXPORT SoftwareFrameData {
   gfx::Size size;
   gfx::Rect damage_rect;
   base::SharedMemoryHandle handle;
+
+  size_t SizeInBytes() const;
+  base::CheckedNumeric<size_t> CheckedSizeInBytes() const;
 };
 
 }  // namespace cc