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| 1 /* | 1 /* | 
| 2  * Copyright (C) 2013 Google Inc. All rights reserved. | 2  * Copyright (C) 2013 Google Inc. All rights reserved. | 
| 3  * | 3  * | 
| 4  * Redistribution and use in source and binary forms, with or without | 4  * Redistribution and use in source and binary forms, with or without | 
| 5  * modification, are permitted provided that the following conditions are | 5  * modification, are permitted provided that the following conditions are | 
| 6  * met: | 6  * met: | 
| 7  * | 7  * | 
| 8  *     * Redistributions of source code must retain the above copyright | 8  *     * Redistributions of source code must retain the above copyright | 
| 9  * notice, this list of conditions and the following disclaimer. | 9  * notice, this list of conditions and the following disclaimer. | 
| 10  *     * Redistributions in binary form must reproduce the above | 10  *     * Redistributions in binary form must reproduce the above | 
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| 47   class CanvasInterceptorBase { | 47   class CanvasInterceptorBase { | 
| 48     STACK_ALLOCATED(); | 48     STACK_ALLOCATED(); | 
| 49     WTF_MAKE_NONCOPYABLE(CanvasInterceptorBase); | 49     WTF_MAKE_NONCOPYABLE(CanvasInterceptorBase); | 
| 50 | 50 | 
| 51    protected: | 51    protected: | 
| 52     CanvasInterceptorBase(InterceptingCanvasBase* canvas) : canvas_(canvas) { | 52     CanvasInterceptorBase(InterceptingCanvasBase* canvas) : canvas_(canvas) { | 
| 53       ++canvas_->call_nesting_depth_; | 53       ++canvas_->call_nesting_depth_; | 
| 54     } | 54     } | 
| 55 | 55 | 
| 56     ~CanvasInterceptorBase() { | 56     ~CanvasInterceptorBase() { | 
| 57       ASSERT(canvas_->call_nesting_depth_ > 0); | 57       DCHECK_GT(canvas_->call_nesting_depth_, 0u); | 
| 58       if (!--canvas_->call_nesting_depth_) | 58       if (!--canvas_->call_nesting_depth_) | 
| 59         canvas_->call_count_++; | 59         canvas_->call_count_++; | 
| 60     } | 60     } | 
| 61 | 61 | 
| 62     DerivedCanvas* Canvas() { return static_cast<DerivedCanvas*>(canvas_); } | 62     DerivedCanvas* Canvas() { return static_cast<DerivedCanvas*>(canvas_); } | 
| 63     bool TopLevelCall() const { return canvas_->CallNestingDepth() == 1; } | 63     bool TopLevelCall() const { return canvas_->CallNestingDepth() == 1; } | 
| 64     InterceptingCanvasBase* canvas_; | 64     InterceptingCanvasBase* canvas_; | 
| 65   }; | 65   }; | 
| 66 | 66 | 
| 67   void ResetStepCount() { call_count_ = 0; } | 67   void ResetStepCount() { call_count_ = 0; } | 
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| 358 | 358 | 
| 359   void willRestore() override { | 359   void willRestore() override { | 
| 360     Interceptor interceptor(this); | 360     Interceptor interceptor(this); | 
| 361     this->SkCanvas::willRestore(); | 361     this->SkCanvas::willRestore(); | 
| 362   } | 362   } | 
| 363 }; | 363 }; | 
| 364 | 364 | 
| 365 }  // namespace blink | 365 }  // namespace blink | 
| 366 | 366 | 
| 367 #endif  // InterceptingCanvas_h | 367 #endif  // InterceptingCanvas_h | 
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