gpu: Associate all GpuMemoryBuffers with unique IDs.

content/common/gpu/gpu_memory_buffer_factory_mac.cc

Index: content/common/gpu/gpu_memory_buffer_factory_mac.cc
diff --git a/content/common/gpu/gpu_memory_buffer_factory_mac.cc b/content/common/gpu/gpu_memory_buffer_factory_mac.cc
index 2ad5bc92925de4797a88c08eff4fb89337be83be..aa04b274b69cb28ee706306ace8743106b50c02b 100644
--- a/content/common/gpu/gpu_memory_buffer_factory_mac.cc
+++ b/content/common/gpu/gpu_memory_buffer_factory_mac.cc
@@ -18,24 +18,27 @@ class GpuMemoryBufferFactoryImpl : public GpuMemoryBufferFactory,
  public:
   // Overridden from GpuMemoryBufferFactory:
   gfx::GpuMemoryBufferHandle CreateGpuMemoryBuffer(
-      const gfx::GpuMemoryBufferHandle& handle,
+      gfx::GpuMemoryBufferType type,
+      gfx::GpuMemoryBufferId id,
       const gfx::Size& size,
       gfx::GpuMemoryBuffer::Format format,
-      gfx::GpuMemoryBuffer::Usage usage) override {
-    switch (handle.type) {
+      gfx::GpuMemoryBuffer::Usage usage,
+      int client_id) override {
+    switch (type) {
       case gfx::IO_SURFACE_BUFFER:
         return io_surface_factory_.CreateGpuMemoryBuffer(
-            handle.global_id, size, format);
+            id, size, format, client_id);
       default:
         NOTREACHED();
         return gfx::GpuMemoryBufferHandle();
     }
   }
-  void DestroyGpuMemoryBuffer(
-      const gfx::GpuMemoryBufferHandle& handle) override {
-    switch (handle.type) {
+  void DestroyGpuMemoryBuffer(gfx::GpuMemoryBufferType type,
+                              gfx::GpuMemoryBufferId id,
+                              int client_id) override {
+    switch (type) {
       case gfx::IO_SURFACE_BUFFER:
-        io_surface_factory_.DestroyGpuMemoryBuffer(handle.global_id);
+        io_surface_factory_.DestroyGpuMemoryBuffer(id, client_id);
         break;
       default:
         NOTREACHED();
@@ -61,12 +64,8 @@ class GpuMemoryBufferFactoryImpl : public GpuMemoryBufferFactory,
         return image;
       }
       case gfx::IO_SURFACE_BUFFER: {
-        // Verify that client is the owner of the buffer we're about to use.
-        if (handle.global_id.secondary_id != client_id)
-          return scoped_refptr<gfx::GLImage>();
-
         return io_surface_factory_.CreateImageForGpuMemoryBuffer(
-            handle.global_id, size, format);
+            handle.id, size, format, client_id);
       }
       default:
         NOTREACHED();