Add shared bitmap managers for browser and renderer processes.

ui/compositor/compositor.cc

 // Copyright (c) 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 "ui/compositor/compositor.h"
 
 #include <algorithm>
 #include <deque>
 
 #include "base/bind.h"
@@ skipping 27 matching lines @@
 const double kDefaultRefreshRate = 60.0;
 const double kTestRefreshRate = 200.0;
 
 enum SwapType {
   DRAW_SWAP,
   READPIXELS_SWAP,
 };
 
 bool g_compositor_initialized = false;
 base::Thread* g_compositor_thread = NULL;
+cc::SharedBitmapManager* g_shared_bitmap_manager;

[danakj, 2014/01/30 22:59:01]

Can we pass it to ui::Compositor constructor instead?

 
 ui::ContextFactory* g_context_factory = NULL;
 
 const int kCompositorLockTimeoutMs = 67;
 
 class PendingSwap {
  public:
   PendingSwap(SwapType type, ui::PostedSwapQueue* posted_swaps);
   ~PendingSwap();
 
@@ skipping 175 matching lines @@
   settings.initial_debug_state.show_replica_screen_space_rects =
       command_line->HasSwitch(cc::switches::kUIShowReplicaScreenSpaceRects);
   settings.initial_debug_state.show_occluding_rects =
       command_line->HasSwitch(cc::switches::kUIShowOccludingRects);
   settings.initial_debug_state.show_non_occluding_rects =
       command_line->HasSwitch(cc::switches::kUIShowNonOccludingRects);
 
   base::TimeTicks before_create = base::TimeTicks::Now();
   if (!!g_compositor_thread) {
     host_ = cc::LayerTreeHost::CreateThreaded(
-        this, NULL, settings, g_compositor_thread->message_loop_proxy());
+        this,
+        g_shared_bitmap_manager,
+        settings,
+        g_compositor_thread->message_loop_proxy());
   } else {
-    host_ = cc::LayerTreeHost::CreateSingleThreaded(this, this, NULL, settings);
+    host_ = cc::LayerTreeHost::CreateSingleThreaded(
+        this, this, g_shared_bitmap_manager, settings);
   }
   UMA_HISTOGRAM_TIMES("GPU.CreateBrowserCompositor",
                       base::TimeTicks::Now() - before_create);
   host_->SetRootLayer(root_web_layer_);
   host_->SetLayerTreeHostClientReady();
 }
 
 Compositor::~Compositor() {
   TRACE_EVENT0("shutdown", "Compositor::destructor");
 
@@ skipping 52 matching lines @@
   if (g_compositor_thread) {
     g_compositor_thread->Stop();
     delete g_compositor_thread;
     g_compositor_thread = NULL;
   }
 
   DCHECK(g_compositor_initialized) << "Compositor::Initialize() didn't happen.";
   g_compositor_initialized = false;
 }
 
+// static
+void Compositor::SetSharedBitmapManager(cc::SharedBitmapManager* manager) {
+  g_shared_bitmap_manager = manager;
+}
+
 void Compositor::ScheduleDraw() {
   if (g_compositor_thread) {
     host_->Composite(gfx::FrameTime::Now());
   } else if (!defer_draw_scheduling_) {
     defer_draw_scheduling_ = true;
     base::MessageLoop::current()->PostTask(
         FROM_HERE,
         base::Bind(&Compositor::Draw, schedule_draw_factory_.GetWeakPtr()));
   }
 }
@@ skipping 245 matching lines @@
     // CompositorObservers to be notified before starting another
     // draw cycle.
     ScheduleDraw();
   }
   FOR_EACH_OBSERVER(CompositorObserver,
                     observer_list_,
                     OnCompositingEnded(this));
 }
 
 }  // namespace ui