Always restore GL scissor box in GLRenderer::RestoreGLState()

cc/output/gl_renderer.h

 // Copyright 2010 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.
 
 #ifndef CC_OUTPUT_GL_RENDERER_H_
 #define CC_OUTPUT_GL_RENDERER_H_
 
 #include <deque>
 #include <vector>
 
@@ skipping 478 matching lines @@
   gpu::gles2::GLES2Interface* gl_;
   gpu::ContextSupport* context_support_;
   std::unique_ptr<ContextCacheController::ScopedVisibility> context_visibility_;
 
   TextureMailboxDeleter* texture_mailbox_deleter_;
 
   gfx::Rect swap_buffer_rect_;
   gfx::Rect scissor_rect_;
   bool is_using_bind_uniform_;
   bool is_scissor_enabled_;
-  bool scissor_rect_needs_reset_;
   bool stencil_shadow_;
   bool blend_shadow_;
   unsigned program_shadow_;
   TexturedQuadDrawCache draw_cache_;
   int highp_threshold_min_;
   int highp_threshold_cache_;
 
   struct PendingAsyncReadPixels;
   std::vector<std::unique_ptr<PendingAsyncReadPixels>>
       pending_async_read_pixels_;
@@ skipping 27 matching lines @@
   bool force_drawing_frame_framebuffer_unflipped_ = false;
 
   BoundGeometry bound_geometry_;
   ColorLUTCache color_lut_cache_;
   DISALLOW_COPY_AND_ASSIGN(GLRenderer);
 };
 
 }  // namespace cc
 
 #endif  // CC_OUTPUT_GL_RENDERER_H_