Add DCLayerOverlayProcessor and supporting DCLayer structures.

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 8b272ded6592b8d749c78945809964b34fe39c6a..a309b2583b49e628b53435f803adac15354a1bd7 100644
--- a/gpu/command_buffer/client/gles2_implementation.cc
+++ b/gpu/command_buffer/client/gles2_implementation.cc
@@ -4985,6 +4985,47 @@ void GLES2Implementation::ScheduleCALayerCHROMIUM(GLuint contents_texture_id,
                                    buffer.offset());
 }
 
+void GLES2Implementation::ScheduleDCLayerSharedStateCHROMIUM(
+    GLfloat opacity,
+    GLboolean is_clipped,
+    const GLfloat* clip_rect,
+    GLint z_order,
+    const GLfloat* transform) {
+  size_t shm_size = 20 * sizeof(GLfloat);
+  ScopedTransferBufferPtr buffer(shm_size, helper_, transfer_buffer_);
+  if (!buffer.valid() || buffer.size() < shm_size) {
+    SetGLError(GL_OUT_OF_MEMORY, "GLES2::ScheduleDCLayerSharedStateCHROMIUM",
+               "out of memory");
+    return;
+  }
+  GLfloat* mem = static_cast<GLfloat*>(buffer.address());
+  memcpy(mem + 0, clip_rect, 4 * sizeof(GLfloat));
+  memcpy(mem + 4, transform, 16 * sizeof(GLfloat));
+  helper_->ScheduleDCLayerSharedStateCHROMIUM(opacity, is_clipped, z_order,
+                                              buffer.shm_id(), buffer.offset());
+}
+
+void GLES2Implementation::ScheduleDCLayerCHROMIUM(GLuint contents_texture_id,
+                                                  const GLfloat* contents_rect,
+                                                  GLuint background_color,
+                                                  GLuint edge_aa_mask,
+                                                  const GLfloat* bounds_rect,
+                                                  GLuint filter) {
+  size_t shm_size = 8 * sizeof(GLfloat);
+  ScopedTransferBufferPtr buffer(shm_size, helper_, transfer_buffer_);
+  if (!buffer.valid() || buffer.size() < shm_size) {
+    SetGLError(GL_OUT_OF_MEMORY, "GLES2::ScheduleDCLayerCHROMIUM",
+               "out of memory");
+    return;
+  }
+  GLfloat* mem = static_cast<GLfloat*>(buffer.address());
+  memcpy(mem + 0, contents_rect, 4 * sizeof(GLfloat));
+  memcpy(mem + 4, bounds_rect, 4 * sizeof(GLfloat));
+  helper_->ScheduleDCLayerCHROMIUM(contents_texture_id, background_color,
+                                   edge_aa_mask, filter, buffer.shm_id(),
+                                   buffer.offset());
+}
+
 void GLES2Implementation::CommitOverlayPlanesCHROMIUM() {
   GPU_CLIENT_SINGLE_THREAD_CHECK();
   GPU_CLIENT_LOG("[" << GetLogPrefix() << "] CommitOverlayPlanesCHROMIUM()");