cc::SharedQuadState: drop CopyFrom and add copy constructor

cc/quads/draw_quad_unittest.cc

 // Copyright 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.
 
 #include "cc/quads/draw_quad.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 
@@ skipping 28 matching lines @@
   gfx::Rect clip_rect(19, 21, 23, 25);
   bool is_clipped = true;
   float opacity = 0.25f;
   SkXfermode::Mode blend_mode = SkXfermode::kMultiply_Mode;
   int sorting_context_id = 65536;
 
   std::unique_ptr<SharedQuadState> state(new SharedQuadState);
   state->SetAll(quad_transform, layer_bounds, visible_layer_rect, clip_rect,
                 is_clipped, opacity, blend_mode, sorting_context_id);
 
-  std::unique_ptr<SharedQuadState> copy(new SharedQuadState);
-  copy->CopyFrom(state.get());
+  std::unique_ptr<SharedQuadState> copy(new SharedQuadState(*state));
   EXPECT_EQ(quad_transform, copy->quad_to_target_transform);
   EXPECT_EQ(visible_layer_rect, copy->visible_quad_layer_rect);
   EXPECT_EQ(opacity, copy->opacity);
   EXPECT_EQ(clip_rect, copy->clip_rect);
   EXPECT_EQ(is_clipped, copy->is_clipped);
   EXPECT_EQ(blend_mode, copy->blend_mode);
 }
 
 SharedQuadState* CreateSharedQuadState(RenderPass* render_pass) {
   gfx::Transform quad_transform = gfx::Transform(1.0, 0.0, 0.5, 1.0, 0.5, 0.0);
@@ skipping 20 matching lines @@
   EXPECT_EQ(quad->opaque_rect, copy->opaque_rect);
   EXPECT_EQ(quad->needs_blending, copy->needs_blending);
   EXPECT_EQ(copy_shared_state, copy->shared_quad_state);
 }
 
 #define CREATE_SHARED_STATE()                                              \
   std::unique_ptr<RenderPass> render_pass = RenderPass::Create();          \
   SharedQuadState* shared_state(CreateSharedQuadState(render_pass.get())); \
   SharedQuadState* copy_shared_state =                                     \
       render_pass->CreateAndAppendSharedQuadState();                       \
-  copy_shared_state->CopyFrom(shared_state);
+  *copy_shared_state = *shared_state;
 
 #define QUAD_DATA                              \
   gfx::Rect quad_rect(30, 40, 50, 60);         \
   gfx::Rect quad_visible_rect(40, 50, 30, 20); \
   gfx::Rect quad_opaque_rect(60, 55, 10, 10);  \
   ALLOW_UNUSED_LOCAL(quad_opaque_rect);        \
   bool needs_blending = true;                  \
   ALLOW_UNUSED_LOCAL(needs_blending);
 
 #define SETUP_AND_COPY_QUAD_NEW(Type, quad)                                \
@@ skipping 872 matching lines @@
         LOG(ERROR) << "YUVVideoDrawQuad " << sizeof(YUVVideoDrawQuad);
         break;
       case DrawQuad::INVALID:
         break;
     }
   }
 }
 
 }  // namespace
 }  // namespace cc