Remove ContextProvider::VerifyContexts.

ContextProvider::VerifyContexts is not used anywhere.

BUG=544547
CQ_INCLUDE_TRYBOTS=tryserver.blink:linux_blink_rel

Review URL: https://codereview.chromium.org/1419923002

Cr-Commit-Position: refs/heads/master@{#355643}

6 files changed, 1 insertions, 17 deletions

diff --git a/cc/output/context_provider.h b/cc/output/context_provider.h
index e1a4431..db12706 100644
--- a/cc/output/context_provider.h
+++ b/cc/output/context_provider.h
@@ -84,18 +84,12 @@ class ContextProvider : public base::RefCountedThreadSafe<ContextProvider> {
   // Returns the capabilities of the currently bound 3d context.
   virtual Capabilities ContextCapabilities() = 0;
 
-  // Ask the provider to check if the contexts are valid or lost. If they are,
-  // this should invalidate the provider so that it can be replaced with a new
-  // one.
-  virtual void VerifyContexts() = 0;
-
   // Delete all cached gpu resources.
   virtual void DeleteCachedResources() = 0;
 
   // Sets a callback to be called when the context is lost. This should be
   // called from the same thread that the context is bound to. To avoid races,
-  // it should be called before BindToCurrentThread(), or VerifyContexts()
-  // should be called after setting the callback.
+  // it should be called before BindToCurrentThread().
   typedef base::Closure LostContextCallback;
   virtual void SetLostContextCallback(
       const LostContextCallback& lost_context_callback) = 0;
diff --git a/cc/raster/tile_task_worker_pool_perftest.cc b/cc/raster/tile_task_worker_pool_perftest.cc
index 1c4942c..a67f6b0 100644
--- a/cc/raster/tile_task_worker_pool_perftest.cc
+++ b/cc/raster/tile_task_worker_pool_perftest.cc
@@ -96,7 +96,6 @@ class PerfContextProvider : public ContextProvider {
   }
   void SetupLock() override {}
   base::Lock* GetLock() override { return &context_lock_; }
-  void VerifyContexts() override {}
   void DeleteCachedResources() override {}
   void SetLostContextCallback(const LostContextCallback& cb) override {}
 
diff --git a/cc/test/test_context_provider.cc b/cc/test/test_context_provider.cc
index f702165..0c45e62 100644
--- a/cc/test/test_context_provider.cc
+++ b/cc/test/test_context_provider.cc
@@ -137,11 +137,6 @@ base::Lock* TestContextProvider::GetLock() {
   return &context_lock_;
 }
 
-void TestContextProvider::VerifyContexts() {
-  DCHECK(bound_);
-  DCHECK(context_thread_checker_.CalledOnValidThread());
-}
-
 void TestContextProvider::DeleteCachedResources() {
 }
 
diff --git a/cc/test/test_context_provider.h b/cc/test/test_context_provider.h
index fc98873..1b7a915 100644
--- a/cc/test/test_context_provider.h
+++ b/cc/test/test_context_provider.h
@@ -40,7 +40,6 @@ class TestContextProvider : public ContextProvider {
   void InvalidateGrContext(uint32_t state) override;
   void SetupLock() override;
   base::Lock* GetLock() override;
-  void VerifyContexts() override;
   void DeleteCachedResources() override;
   void SetLostContextCallback(const LostContextCallback& cb) override;
 
diff --git a/cc/test/test_in_process_context_provider.cc b/cc/test/test_in_process_context_provider.cc
index d5b7c28..02c23af 100644
--- a/cc/test/test_in_process_context_provider.cc
+++ b/cc/test/test_in_process_context_provider.cc
@@ -156,8 +156,6 @@ TestInProcessContextProvider::ContextCapabilities() {
   return capabilities;
 }
 
-void TestInProcessContextProvider::VerifyContexts() {}
-
 void TestInProcessContextProvider::DeleteCachedResources() {
   if (gr_context_)
     gr_context_->freeGpuResources();
diff --git a/cc/test/test_in_process_context_provider.h b/cc/test/test_in_process_context_provider.h
index 91fe8fd9..904ac6d 100644
--- a/cc/test/test_in_process_context_provider.h
+++ b/cc/test/test_in_process_context_provider.h
@@ -36,7 +36,6 @@ class TestInProcessContextProvider : public ContextProvider {
   void SetupLock() override;
   base::Lock* GetLock() override;
   Capabilities ContextCapabilities() override;
-  void VerifyContexts() override;
   void DeleteCachedResources() override;
   void SetLostContextCallback(
       const LostContextCallback& lost_context_callback) override;