Add some files to the C compilation test, and fix some stuff that wasn't C com...

ppapi/c/dev/ppb_context_3d_trusted_dev.h

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef PPAPI_C_DEV_PPB_CONTEXT_3D_TRUSTED_DEV_H_
 #define PPAPI_C_DEV_PPB_CONTEXT_3D_TRUSTED_DEV_H_
 
 #include "ppapi/c/dev/ppb_context_3d_dev.h"
 #include "ppapi/c/pp_bool.h"
 #include "ppapi/c/pp_instance.h"
 #include "ppapi/c/pp_resource.h"
 #include "ppapi/c/pp_stdint.h"
 
 #define PPB_CONTEXT_3D_TRUSTED_DEV_INTERFACE "PPB_Context3DTrusted(Dev);0.2"
 
-enum PPB_Context3DTrustedError {
+typedef enum {
   kNoError,
   kInvalidSize,
   kOutOfBounds,
   kUnknownCommand,
   kInvalidArguments,
   kLostContext,
   kGenericError
-};
+} PPB_Context3DTrustedError;
 
 struct PP_Context3DTrustedState {
   // Size of the command buffer in command buffer entries.
   int32_t num_entries;
 
   // The offset (in entries) from which the reader is reading.
   int32_t get_offset;
 
   // The offset (in entries) at which the writer is writing.
   int32_t put_offset;
@@ skipping 21 matching lines @@
 
   // Initializes the command buffer with the given size.
   PP_Bool (*Initialize)(PP_Resource context_id, int32_t size);
 
   // Gets the ring buffer for the command buffer.
   PP_Bool (*GetRingBuffer)(PP_Resource context_id,
                            int* shm_handle,
                            uint32_t* shm_size);
 
   // Returns the current state.
-  PP_Context3DTrustedState (*GetState)(PP_Resource context);
+  struct PP_Context3DTrustedState (*GetState)(PP_Resource context);
 
   // The writer calls this to update its put offset.
   PP_Bool (*Flush)(PP_Resource context, int32_t put_offset);
 
 
   // The writer calls this to update its put offset. This function returns the
   // reader's most recent get offset. Does not return until after the put offset
   // change callback has been invoked.
-  PP_Context3DTrustedState (*FlushSync)(PP_Resource context,
-                                        int32_t put_offset);
+  struct PP_Context3DTrustedState (*FlushSync)(PP_Resource context,
+                                               int32_t put_offset);
 
   // Create a transfer buffer and return a handle that uniquely
   // identifies it or -1 on error.
   int32_t (*CreateTransferBuffer)(PP_Resource context, size_t size);
 
   // Destroy a transfer buffer and recycle the handle.
   PP_Bool (*DestroyTransferBuffer)(PP_Resource context, int32_t id);
 
   // Get the transfer buffer associated with a handle.
   PP_Bool (*GetTransferBuffer)(PP_Resource context,
                                int32_t id,
                                int* shm_handle,
                                uint32_t* shm_size);
 };
 
 #endif  // PPAPI_C_DEV_PPB_CONTEXT_3D_TRUSTED_DEV_H_