Update pepper to not assume that SharedMemoryHandle is an int.

content/renderer/pepper/audio_helper.cc

Index: content/renderer/pepper/audio_helper.cc
diff --git a/content/renderer/pepper/audio_helper.cc b/content/renderer/pepper/audio_helper.cc
index a9a9568a379583a7cd5d9dffa165f7aebe264cbb..3a2e8e79d9b893dbdef002e37383d415d326fc0e 100644
--- a/content/renderer/pepper/audio_helper.cc
+++ b/content/renderer/pepper/audio_helper.cc
@@ -28,10 +28,11 @@ int32_t AudioHelper::GetSyncSocketImpl(int* sync_socket) {
   return PP_ERROR_FAILED;
 }
 
-int32_t AudioHelper::GetSharedMemoryImpl(int* shm_handle, uint32_t* shm_size) {
+int32_t AudioHelper::GetSharedMemoryImpl(base::SharedMemoryHandle* shm_handle,
+                                         uint32_t* shm_size) {
   if (shared_memory_for_create_callback_) {
-    *shm_handle = reinterpret_cast<int>(PlatformFileFromSharedMemoryHandle(
-        shared_memory_for_create_callback_->handle()));
+    *shm_handle = base::SharedMemory::ShallowCopyHandle(

[piman, 2015/06/01 22:16:08]

Do we need ShallowCopyHandle at all? Can we pass the handle directly?

Actually, I think we could even pass back the SharedMemory directly. The
"trusted API" isn't actually exposed to plugins, so we can keep using Chrome
types all the way.

[erikchen, 2015/06/01 23:48:52]

Good suggestion. Done.

We should also be able to remove shm_size, since that's a field on
base::SharedMemory. That being said, I am not doing so in this CL, and I do not
plan to write a followup CL to do so. Let me know if you think this is an
important task.

+        shared_memory_for_create_callback_->handle());
     *shm_size = shared_memory_size_for_create_callback_;
     return PP_OK;
   }