Add a new parameter dest_type to the GL_CHROMIUM_copy_texture extension.

content/common/gpu/client/webgraphicscontext3d_command_buffer_impl.cc

Index: content/common/gpu/client/webgraphicscontext3d_command_buffer_impl.cc
diff --git a/content/common/gpu/client/webgraphicscontext3d_command_buffer_impl.cc b/content/common/gpu/client/webgraphicscontext3d_command_buffer_impl.cc
index 90f7d9dd9d28de51ea8c2309071488526d56f074..c5f4014903287bfe68ed78177a85c356a274fa7d 100644
--- a/content/common/gpu/client/webgraphicscontext3d_command_buffer_impl.cc
+++ b/content/common/gpu/client/webgraphicscontext3d_command_buffer_impl.cc
@@ -1602,8 +1602,17 @@ 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,
-                 WebGLId, WebGLId, WGC3Dint, WGC3Denum);
+DELEGATE_TO_GL_6(copyTextureCHROMIUM, CopyTextureCHROMIUM,  WGC3Denum,
+                 WebGLId, WebGLId, 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.

[Ken Russell (switch to Gerrit), 2013/04/12 01:55:29]

Please add a line like:

TODO(jun.a.jiang): remove once the old copyTextureCHROMIUM is no longer being
called.

+void WebGraphicsContext3DCommandBufferImpl::copyTextureCHROMIUM(
+    WGC3Denum target, WebGLId source_id, WebGLId dest_id, WGC3Dint level,
+    WGC3Denum internal_format) {
+  gl_->CopyTextureCHROMIUM(target, source_id, dest_id, level, internal_format,
+                           GL_UNSIGNED_BYTE);
+}
 
 DELEGATE_TO_GL_3(bindUniformLocationCHROMIUM, BindUniformLocationCHROMIUM,
                  WebGLId, WGC3Dint, const WGC3Dchar*)