Implement Platform::getUniqueIdForProcess.

BUG=501069,499332

Review URL: https://codereview.chromium.org/1186933004

Cr-Commit-Position: refs/heads/master@{#335801}

4 files changed, 16 insertions, 0 deletions

diff --git a/components/html_viewer/blink_platform_impl.cc b/components/html_viewer/blink_platform_impl.cc
index 6a8032b..04b5ef4 100644
--- a/components/html_viewer/blink_platform_impl.cc
+++ b/components/html_viewer/blink_platform_impl.cc
@@ -13,6 +13,7 @@
 #include "base/thread_task_runner_handle.h"
 #include "base/threading/platform_thread.h"
 #include "base/time/time.h"
+#include "base/trace_event/trace_event.h"
 #include "components/html_viewer/blink_resource_constants.h"
 #include "components/html_viewer/web_clipboard_impl.h"
 #include "components/html_viewer/web_cookie_jar_impl.h"
@@ -133,6 +134,12 @@ blink::WebCompositorSupport* BlinkPlatformImpl::compositorSupport() {
   return &compositor_support_;
 }
 
+uint32_t BlinkPlatformImpl::getUniqueIdForProcess() {
+  // TODO(rickyz): Replace this with base::GetUniqueIdForProcess when that's
+  // ready.
+  return base::trace_event::TraceLog::GetInstance()->process_id();
+}
+
 void BlinkPlatformImpl::createMessageChannel(
     blink::WebMessagePortChannel** channel1,
     blink::WebMessagePortChannel** channel2) {
diff --git a/components/html_viewer/blink_platform_impl.h b/components/html_viewer/blink_platform_impl.h
index b651e04..ffc0110d 100644
--- a/components/html_viewer/blink_platform_impl.h
+++ b/components/html_viewer/blink_platform_impl.h
@@ -54,6 +54,7 @@ class BlinkPlatformImpl : public blink::Platform {
                                              size_t length);
   virtual bool isThreadedCompositingEnabled();
   virtual blink::WebCompositorSupport* compositorSupport();
+  uint32_t getUniqueIdForProcess() override;
   void createMessageChannel(blink::WebMessagePortChannel** channel1,
                             blink::WebMessagePortChannel** channel2) override;
   virtual blink::WebURLLoader* createURLLoader();
diff --git a/content/child/blink_platform_impl.cc b/content/child/blink_platform_impl.cc
index 8c19647..404a82b 100644
--- a/content/child/blink_platform_impl.cc
+++ b/content/child/blink_platform_impl.cc
@@ -30,6 +30,7 @@
 #include "base/time/time.h"
 #include "base/trace_event/memory_allocator_dump_guid.h"
 #include "base/trace_event/memory_dump_manager.h"
+#include "base/trace_event/trace_event.h"
 #include "blink/public/resources/grit/blink_image_resources.h"
 #include "blink/public/resources/grit/blink_resources.h"
 #include "components/mime_util/mime_util.h"
@@ -1304,6 +1305,12 @@ size_t BlinkPlatformImpl::maxDecodedImageBytes() {
 #endif
 }
 
+uint32_t BlinkPlatformImpl::getUniqueIdForProcess() {
+  // TODO(rickyz): Replace this with base::GetUniqueIdForProcess when that's
+  // ready.
+  return base::trace_event::TraceLog::GetInstance()->process_id();
+}
+
 scoped_refptr<base::SingleThreadTaskRunner>
 BlinkPlatformImpl::MainTaskRunnerForCurrentThread() {
   if (main_thread_task_runner_.get() &&
diff --git a/content/child/blink_platform_impl.h b/content/child/blink_platform_impl.h
index 849eeed..3c45894 100644
--- a/content/child/blink_platform_impl.h
+++ b/content/child/blink_platform_impl.h
@@ -81,6 +81,7 @@ class CONTENT_EXPORT BlinkPlatformImpl
   virtual blink::WebDiscardableMemory* allocateAndLockDiscardableMemory(
       size_t bytes);
   virtual size_t maxDecodedImageBytes();
+  virtual uint32_t getUniqueIdForProcess();
   virtual blink::WebURLLoader* createURLLoader();
   virtual blink::WebSocketHandle* createWebSocketHandle();
   virtual blink::WebString userAgent();