Add a new parameter dest_type to the GL_CHROMIUM_copy_texture extension.

webkit/gpu/webgraphicscontext3d_in_process_command_buffer_impl.cc

Index: webkit/gpu/webgraphicscontext3d_in_process_command_buffer_impl.cc
diff --git a/webkit/gpu/webgraphicscontext3d_in_process_command_buffer_impl.cc b/webkit/gpu/webgraphicscontext3d_in_process_command_buffer_impl.cc
index 689ee348b5796253388b584c2365821f6a665df3..9cabac9294db89fc258c9da6aafd8c902e14cd52 100644
--- a/webkit/gpu/webgraphicscontext3d_in_process_command_buffer_impl.cc
+++ b/webkit/gpu/webgraphicscontext3d_in_process_command_buffer_impl.cc
@@ -1651,8 +1651,21 @@ DELEGATE_TO_GL_3(getQueryivEXT, GetQueryivEXT, WGC3Denum, WGC3Denum, WGC3Dint*)
 DELEGATE_TO_GL_3(getQueryObjectuivEXT, GetQueryObjectuivEXT,
                  WebGLId, WGC3Denum, WGC3Duint*)
 
-DELEGATE_TO_GL_5(copyTextureCHROMIUM, CopyTextureCHROMIUM, WGC3Denum, WGC3Duint,
-                 WGC3Duint, WGC3Dint, WGC3Denum)
+DELEGATE_TO_GL_6(copyTextureCHROMIUM, CopyTextureCHROMIUM, WGC3Denum, WGC3Duint,
+                 WGC3Duint, WGC3Dint, WGC3Denum, WGC3Denum)
+// This copyTextureCHROMIUM(...) has five parameters and delegates the call to
+// CopyTextureCHROMIUM(...) with the sixth parameter set to GL_UNSIGNED_BYTE
+// to bridge the parameter differences.
+// TODO(jun.a.jiang@intel.com): once all clients switch to call
+// the newer copyTextureCHROMIUM(...) with six parameters, this
+// function will be removed.
+void WebGraphicsContext3DInProcessCommandBufferImpl::copyTextureCHROMIUM(
+    WGC3Denum target, WGC3Duint source_id, WGC3Duint dest_id, WGC3Dint level,
+    WGC3Denum internal_format) {
+  ClearContext();
+  gl_->CopyTextureCHROMIUM(target, source_id, dest_id, level, internal_format,
+                           GL_UNSIGNED_BYTE);
+}
 
 void WebGraphicsContext3DInProcessCommandBufferImpl::insertEventMarkerEXT(
     const WGC3Dchar* marker) {