Add compile assertions to enforce the sizes of all structs and enums in the C API. Adjust some structs to make their sizes consistent across architectures. Note that some structs contain pointers, so are difficult to make consistent between 32-bit and 64-bit. Those types are in test_struct_sizes.c. Other types have a compile assertion immediately after their definition.

This was broken off from a bigger CL:
http://codereview.chromium.org/5340003/

BUG=61004,92983
TEST=test_struct_sizes.c, compile assertions throughout

See this CL for the code that helped generate the static assertions and find affected interfaces:
http://codereview.chromium.org/5730003
Review URL: http://codereview.chromium.org/5674004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@69038 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 10 insertions, 1 deletions

diff --git a/ppapi/c/pp_macros.h b/ppapi/c/pp_macros.h
index a46ea2e..c56bc85 100644
--- a/ppapi/c/pp_macros.h
+++ b/ppapi/c/pp_macros.h
@@ -53,7 +53,7 @@
    SIZE is the expected size in bytes.
  */
 #define PP_COMPILE_ASSERT_SIZE_IN_BYTES_IMPL(NAME, CTYPENAME, SIZE) \
-struct _dummy_struct_for_##NAME { \
+struct PP_Dummy_Struct_For_##NAME { \
 char _COMPILE_ASSERT_FAILED_The_type_named_ \
 ## NAME ## _is_not_ ## SIZE ## \
 _bytes_wide[(sizeof(CTYPENAME) == SIZE) ? 1 : -1]; }
@@ -76,6 +76,15 @@ PP_COMPILE_ASSERT_SIZE_IN_BYTES_IMPL(NAME, NAME, SIZE)
 #define PP_COMPILE_ASSERT_STRUCT_SIZE_IN_BYTES(NAME, SIZE) \
 PP_COMPILE_ASSERT_SIZE_IN_BYTES_IMPL(NAME, struct NAME, SIZE)
 
+/* PP_COMPILE_ASSERT_ENUM_SIZE_IN_BYTES is for typenames that contain 'enum'
+   in C.  That is, enum names that are not typedefs.
+   E.g.:
+   enum Bar { A = 0, B = 1 };
+   PP_COMPILE_ASSERT_ENUM_SIZE_IN_BYTES(Foo, 4);
+ */
+#define PP_COMPILE_ASSERT_ENUM_SIZE_IN_BYTES(NAME, SIZE) \
+PP_COMPILE_ASSERT_SIZE_IN_BYTES_IMPL(NAME, enum NAME, SIZE)
+
 /**
  * @}
  * End of addtogroup PP