Coverity: Pass parameters by reference.

CID=2620,2654,2656,2657,2694,2701,2718,8074,8075,8076,8077,8078,
    8079,8080,8082,8083,8406,8407,8408,8730,9160,11282,11897,12722,
    12724
BUG=none
TEST=none

Review URL: http://codereview.chromium.org/4623001

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@65469 0039d316-1c4b-4281-b951-d872f2087c98

3 files changed, 5 insertions, 5 deletions

diff --git a/chrome/browser/device_orientation/orientation.h b/chrome/browser/device_orientation/orientation.h
index 2193170..de876c9 100644
--- a/chrome/browser/device_orientation/orientation.h
+++ b/chrome/browser/device_orientation/orientation.h
@@ -36,7 +36,7 @@ class Orientation {
 
   static Orientation Empty() { return Orientation(); }
 
-  bool IsEmpty() {
+  bool IsEmpty() const {
     return !can_provide_alpha_ && !can_provide_beta_ && !can_provide_gamma_;
   }
 
diff --git a/chrome/browser/device_orientation/provider_impl.cc b/chrome/browser/device_orientation/provider_impl.cc
index 81ecfa3..e5e2397 100644
--- a/chrome/browser/device_orientation/provider_impl.cc
+++ b/chrome/browser/device_orientation/provider_impl.cc
@@ -99,7 +99,7 @@ void ProviderImpl::ScheduleInitializePollingThread() {
   polling_loop->PostTask(FROM_HERE, task);
 }
 
-void ProviderImpl::DoNotify(Orientation orientation) {
+void ProviderImpl::DoNotify(const Orientation& orientation) {
   DCHECK(MessageLoop::current() == creator_loop_);
 
   last_notification_ = orientation;
@@ -115,7 +115,7 @@ void ProviderImpl::DoNotify(Orientation orientation) {
   }
 }
 
-void ProviderImpl::ScheduleDoNotify(Orientation orientation) {
+void ProviderImpl::ScheduleDoNotify(const Orientation& orientation) {
   DCHECK(MessageLoop::current() == polling_thread_->message_loop());
 
   Task* task = NewRunnableMethod(this, &ProviderImpl::DoNotify, orientation);
diff --git a/chrome/browser/device_orientation/provider_impl.h b/chrome/browser/device_orientation/provider_impl.h
index d984062..7396035 100644
--- a/chrome/browser/device_orientation/provider_impl.h
+++ b/chrome/browser/device_orientation/provider_impl.h
@@ -52,8 +52,8 @@ class ProviderImpl : public Provider {
 
   // Method for notifying observers of an orientation update.
   // Runs on the creator_thread_.
-  void DoNotify(Orientation orientation);
-  void ScheduleDoNotify(Orientation orientation);
+  void DoNotify(const Orientation& orientation);
+  void ScheduleDoNotify(const Orientation& orientation);
 
   static bool SignificantlyDifferent(const Orientation& orientation1,
                                      const Orientation& orientation2);