cc: Rename visible_content_rect and content stuff on quads.

cc/quads/draw_quad_perftest.cc

Index: cc/quads/draw_quad_perftest.cc
diff --git a/cc/quads/draw_quad_perftest.cc b/cc/quads/draw_quad_perftest.cc
index 0473238e9d5af1e2ef9b60b284a7a6ec43fa6ca5..08ce6d07b296ce96f89abf61a4157197eec16e05 100644
--- a/cc/quads/draw_quad_perftest.cc
+++ b/cc/quads/draw_quad_perftest.cc
@@ -23,7 +23,7 @@ static const int kTimeCheckInterval = 10;
 SharedQuadState* CreateSharedQuadState(RenderPass* render_pass) {
   gfx::Transform quad_transform = gfx::Transform(1.0, 0.0, 0.5, 1.0, 0.5, 0.0);
   gfx::Size content_bounds(26, 28);
-  gfx::Rect visible_content_rect(10, 12, 14, 16);
+  gfx::Rect visible_layer_rect(10, 12, 14, 16);
   gfx::Rect clip_rect(19, 21, 23, 25);
   bool is_clipped = false;
   float opacity = 1.f;
@@ -31,7 +31,7 @@ SharedQuadState* CreateSharedQuadState(RenderPass* render_pass) {
   SkXfermode::Mode blend_mode = SkXfermode::kSrcOver_Mode;
 
   SharedQuadState* state = render_pass->CreateAndAppendSharedQuadState();
-  state->SetAll(quad_transform, content_bounds, visible_content_rect, clip_rect,
+  state->SetAll(quad_transform, content_bounds, visible_layer_rect, clip_rect,
                 is_clipped, opacity, blend_mode, sorting_context_id);
   return state;
 }