Implement web speech synthesis.

content/browser/renderer_host/render_process_host_impl.cc

 // Copyright (c) 2012 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.
 
 // Represents the browser side of the browser <--> renderer communication
 // channel. There will be one RenderProcessHost per renderer process.
 
 #include "content/browser/renderer_host/render_process_host_impl.h"
 
 #include <algorithm>
@@ skipping 827 matching lines @@
     switches::kDisableEncryptedMedia,
     switches::kEnableExperimentalWebKitFeatures,
     switches::kEnableFixedLayout,
     switches::kEnableDeferredImageDecoding,
     switches::kEnableGPUServiceLogging,
     switches::kEnableGPUClientLogging,
     switches::kEnableGpuClientTracing,
     switches::kEnableGpuBenchmarking,
     switches::kEnableMemoryBenchmarking,
     switches::kEnableLogging,
+    switches::kEnableSpeechSynthesis,
     switches::kEnableTouchDragDrop,
     switches::kEnableTouchEditing,
     switches::kEnableVsyncNotification,
     switches::kEnableWebPInAcceptHeader,
     switches::kDisableMediaSource,
     switches::kDisableRendererSideMixing,
     switches::kEnableStrictSiteIsolation,
     switches::kDisableFullScreen,
     switches::kEnableNewDialogStyle,
 #if defined(ENABLE_PLUGINS)
@@ skipping 883 matching lines @@
   TRACE_EVENT0("renderer_host",
                "RenderWidgetHostImpl::OnCompositorSurfaceBuffersSwappedNoHost");
   AcceleratedSurfaceMsg_BufferPresented_Params ack_params;
   ack_params.sync_point = 0;
   RenderWidgetHostImpl::AcknowledgeBufferPresent(route_id,
                                                  gpu_process_host_id,
                                                  ack_params);
 }
 
 }  // namespace content