gpu: Generate mailboxes on client side

gpu/command_buffer/client/gles2_implementation.cc

Index: gpu/command_buffer/client/gles2_implementation.cc
diff --git a/gpu/command_buffer/client/gles2_implementation.cc b/gpu/command_buffer/client/gles2_implementation.cc
index b99b332f74f559e299b6bd9c5cff26f12417fc26..9275a49089735406fa57da9dbfdab8459c2dd834 100644
--- a/gpu/command_buffer/client/gles2_implementation.cc
+++ b/gpu/command_buffer/client/gles2_implementation.cc
@@ -3472,12 +3472,34 @@ void GLES2Implementation::GenMailboxCHROMIUM(
       << static_cast<const void*>(mailbox) << ")");
   TRACE_EVENT0("gpu", "GLES2::GenMailboxCHROMIUM");
 
-  std::vector<gpu::Mailbox> names;
-  if (!gpu_control_->GenerateMailboxNames(1, &names)) {
-    SetGLError(GL_OUT_OF_MEMORY, "glGenMailboxCHROMIUM", "Generate failed.");
-    return;
-  }
-  memcpy(mailbox, names[0].name, GL_MAILBOX_SIZE_CHROMIUM);
+  gpu::Mailbox result = gpu::Mailbox::Generate();
+  memcpy(mailbox, result.name, sizeof(result.name));
+}
+
+void GLES2Implementation::ProduceTextureCHROMIUM(GLenum target,
+                                                 const GLbyte* data) {
+  GPU_CLIENT_SINGLE_THREAD_CHECK();
+  GPU_CLIENT_LOG("[" << GetLogPrefix() << "] glProduceTextureCHROMIUM("
+                     << static_cast<const void*>(data) << ")");
+  const Mailbox& mailbox = *reinterpret_cast<const Mailbox*>(data);
+  DCHECK(mailbox.Verify()) << "ProduceTextureCHROMIUM was passed a "
+                              "mailbox that was not generated by "
+                              "GenMailboxCHROMIUM.";
+  helper_->ProduceTextureCHROMIUMImmediate(target, data);
+  CheckGLError();
+}
+
+void GLES2Implementation::ConsumeTextureCHROMIUM(GLenum target,
+                                                 const GLbyte* data) {
+  GPU_CLIENT_SINGLE_THREAD_CHECK();
+  GPU_CLIENT_LOG("[" << GetLogPrefix() << "] glConsumeTextureCHROMIUM("
+                     << static_cast<const void*>(data) << ")");
+  const Mailbox& mailbox = *reinterpret_cast<const Mailbox*>(data);
+  DCHECK(mailbox.Verify()) << "ConsumeTextureCHROMIUM was passed a "
+                              "mailbox that was not generated by "
+                              "GenMailboxCHROMIUM.";
+  helper_->ConsumeTextureCHROMIUMImmediate(target, data);
+  CheckGLError();
 }
 
 void GLES2Implementation::PushGroupMarkerEXT(